2640955924 has 6 divisors (see below), whose sum is σ = 4621672874. Its totient is φ = 1320477960.

The previous prime is 2640955907. The next prime is 2640955957. The reversal of 2640955924 is 4295590462.

It can be written as a sum of positive squares in only one way, i.e., 2344496400 + 296459524 = 48420^2 + 17218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330119487 + ... + 330119494.

Almost surely, 2^2640955924 is an apocalyptic number.

It is an amenable number.

2640955924 is a deficient number, since it is larger than the sum of its proper divisors (1980716950).

2640955924 is a wasteful number, since it uses less digits than its factorization.

2640955924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660238985 (or 660238983 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 2640955924 is about 51390.2317955465. The cubic root of 2640955924 is about 1382.2514399989.

The spelling of 2640955924 in words is "two billion, six hundred forty million, nine hundred fifty-five thousand, nine hundred twenty-four".