1520640132 has 48 divisors (see below), whose sum is σ = 3960751872. Its totient is φ = 450082080.

The previous prime is 1520640127. The next prime is 1520640133. The reversal of 1520640132 is 2310460251.

It is a super-2 number, since 2×1520640132² = 4624692822097954848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1520640133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128278 + ... + 139629.

It is an arithmetic number, because the mean of its divisors is an integer number (82515664).

Almost surely, 2^1520640132 is an apocalyptic number.

1520640132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1520640132 is an abundant number, since it is smaller than the sum of its proper divisors (2440111740).

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

1520640132 is a wasteful number, since it uses less digits than its factorization.

1520640132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267968 (or 267966 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1520640132 is about 38995.3860347606. The cubic root of 1520640132 is about 1149.9407989688.

The spelling of 1520640132 in words is "one billion, five hundred twenty million, six hundred forty thousand, one hundred thirty-two".