1052138736 has 120 divisors (see below), whose sum is σ = 3265170480. Its totient is φ = 313574400.

The previous prime is 1052138723. The next prime is 1052138779. The reversal of 1052138736 is 6378312501.

It is a super-2 number, since 2×1052138736² = 2213991839583355392, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1052138736.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91180 + ... + 102068.

It is an arithmetic number, because the mean of its divisors is an integer number (27209754).

Almost surely, 2^1052138736 is an apocalyptic number.

1052138736 is a gapful number since it is divisible by the number (16) 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 1052138736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632585240).

1052138736 is an abundant number, since it is smaller than the sum of its proper divisors (2213031744).

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

1052138736 is a wasteful number, since it uses less digits than its factorization.

1052138736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10975 (or 10966 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1052138736 is about 32436.6881170073. The cubic root of 1052138736 is about 1017.0859851363.

The spelling of 1052138736 in words is "one billion, fifty-two million, one hundred thirty-eight thousand, seven hundred thirty-six".