1072457520 has 40 divisors (see below), whose sum is σ = 3324619056. Its totient is φ = 285988608.

The previous prime is 1072457447. The next prime is 1072457537. The reversal of 1072457520 is 257542701.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2234047 + ... + 2234526.

Almost surely, 2^1072457520 is an apocalyptic number.

1072457520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1072457520 is an abundant number, since it is smaller than the sum of its proper divisors (2252161536).

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

1072457520 is a wasteful number, since it uses less digits than its factorization.

1072457520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4468589 (or 4468583 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 1072457520 is about 32748.3972126881. The cubic root of 1072457520 is about 1023.5915678682.

The spelling of 1072457520 in words is "one billion, seventy-two million, four hundred fifty-seven thousand, five hundred twenty".