1520427264 has 36 divisors (see below), whose sum is σ = 4046555856. Its totient is φ = 506808832.

The previous prime is 1520427221. The next prime is 1520427269. The reversal of 1520427264 is 4627240251.

It is a super-2 number, since 2×1520427264² = 4623398130229051392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520427269) 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, 989094 + ... + 990629.

Almost surely, 2^1520427264 is an apocalyptic number.

It is an amenable number.

1520427264 is an abundant number, since it is smaller than the sum of its proper divisors (2526128592).

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

1520427264 is an equidigital number, since it uses as much as digits as its factorization.

1520427264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979742 (or 1979728 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 1520427264 is about 38992.6565394050. The cubic root of 1520427264 is about 1149.8871380103.

The spelling of 1520427264 in words is "one billion, five hundred twenty million, four hundred twenty-seven thousand, two hundred sixty-four".