1134238428 has 36 divisors (see below), whose sum is σ = 2899325520. Its totient is φ = 373830336.

The previous prime is 1134238423. The next prime is 1134238489. The reversal of 1134238428 is 8248324311.

It is a happy number.

1134238428 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1134238428² = 2572993623103822368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1134238392 and 1134238401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1134238423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173800 + ... + 180207.

It is an arithmetic number, because the mean of its divisors is an integer number (80536820).

Almost surely, 2^1134238428 is an apocalyptic number.

1134238428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1134238428 is an abundant number, since it is smaller than the sum of its proper divisors (1765087092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1134238428 is a wasteful number, since it uses less digits than its factorization.

1134238428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354106 (or 354101 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 1134238428 is about 33678.4564373132. The cubic root of 1134238428 is about 1042.8810731840.

It can be divided in two parts, 11342 and 38428, that added together give a triangular number (49770 = T₃₁₅).

The spelling of 1134238428 in words is "one billion, one hundred thirty-four million, two hundred thirty-eight thousand, four hundred twenty-eight".