1138262400 has 288 divisors, whose sum is σ = 4432048920. Its totient is φ = 275865600.

The previous prime is 1138262369. The next prime is 1138262407. The reversal of 1138262400 is 42628311.

1138262400 is a `hidden beast` number, since 1 + 1 + 38 + 2 + 624 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138262407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 315004 + ... + 318596.

Almost surely, 2^1138262400 is an apocalyptic number.

1138262400 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 1138262400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2216024460).

1138262400 is an abundant number, since it is smaller than the sum of its proper divisors (3293786520).

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

1138262400 is a wasteful number, since it uses less digits than its factorization.

1138262400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1138262400 is about 33738.1445844314. The cubic root of 1138262400 is about 1044.1129045111.

The spelling of 1138262400 in words is "one billion, one hundred thirty-eight million, two hundred sixty-two thousand, four hundred".