2800664408 has 16 divisors (see below), whose sum is σ = 5379325560. Its totient is φ = 1366177600.

The previous prime is 2800664407. The next prime is 2800664431. The reversal of 2800664408 is 8044660082.

It is a happy number.

It is a super-2 number, since 2×2800664408² = 15687442252475980928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2800664407) 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, 4268978 + ... + 4269633.

Almost surely, 2^2800664408 is an apocalyptic number.

It is an amenable number.

2800664408 is a deficient number, since it is larger than the sum of its proper divisors (2578661152).

2800664408 is a wasteful number, since it uses less digits than its factorization.

2800664408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8538658 (or 8538654 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 2800664408 is about 52921.3039143973. The cubic root of 2800664408 is about 1409.5712204928.

The spelling of 2800664408 in words is "two billion, eight hundred million, six hundred sixty-four thousand, four hundred eight".