1540645232 has 20 divisors (see below), whose sum is σ = 3411428976. Its totient is φ = 660276480.

The previous prime is 1540645189. The next prime is 1540645241. The reversal of 1540645232 is 2325460451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6877769 + ... + 6877992.

Almost surely, 2^1540645232 is an apocalyptic number.

It is an amenable number.

1540645232 is an abundant number, since it is smaller than the sum of its proper divisors (1870783744).

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

1540645232 is a wasteful number, since it uses less digits than its factorization.

1540645232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13755776 (or 13755770 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1540645232 is about 39251.0538966790. The cubic root of 1540645232 is about 1154.9616078891.

The spelling of 1540645232 in words is "one billion, five hundred forty million, six hundred forty-five thousand, two hundred thirty-two".