1134162640 has 80 divisors (see below), whose sum is σ = 2900314368. Its totient is φ = 409840128.

The previous prime is 1134162607. The next prime is 1134162643. The reversal of 1134162640 is 462614311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 1134162599 and 1134162608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1134162643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37279 + ... + 60481.

Almost surely, 2^1134162640 is an apocalyptic number.

1134162640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1134162640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1450157184).

1134162640 is an abundant number, since it is smaller than the sum of its proper divisors (1766151728).

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

1134162640 is a wasteful number, since it uses less digits than its factorization.

1134162640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23276 (or 23270 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1134162640 is about 33677.3312481853. The cubic root of 1134162640 is about 1042.8578447841.

Adding to 1134162640 its reverse (462614311), we get a palindrome (1596776951).

The spelling of 1134162640 in words is "one billion, one hundred thirty-four million, one hundred sixty-two thousand, six hundred forty".