1072391752 has 16 divisors (see below), whose sum is σ = 2011113900. Its totient is φ = 536094720.

The previous prime is 1072391717. The next prime is 1072391753. The reversal of 1072391752 is 2571932701.

It can be written as a sum of positive squares in 2 ways, for example, as 1069682436 + 2709316 = 32706^2 + 1646^2 .

It is not an unprimeable number, because it can be changed into a prime (1072391753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51624 + ... + 69352.

Almost surely, 2^1072391752 is an apocalyptic number.

It is an amenable number.

1072391752 is a deficient number, since it is larger than the sum of its proper divisors (938722148).

1072391752 is a wasteful number, since it uses less digits than its factorization.

1072391752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25296 (or 25292 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 1072391752 is about 32747.3930565473. The cubic root of 1072391752 is about 1023.5706436684.

The spelling of 1072391752 in words is "one billion, seventy-two million, three hundred ninety-one thousand, seven hundred fifty-two".