2640862004 has 12 divisors (see below), whose sum is σ = 5041645728. Its totient is φ = 1200391800.

The previous prime is 2640861953. The next prime is 2640862019. The reversal of 2640862004 is 4002680462.

It is a happy number.

2640862004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 30009752 + ... + 30009839.

It is an arithmetic number, because the mean of its divisors is an integer number (420137144).

Almost surely, 2^2640862004 is an apocalyptic number.

It is an amenable number.

2640862004 is a deficient number, since it is larger than the sum of its proper divisors (2400783724).

2640862004 is a wasteful number, since it uses less digits than its factorization.

2640862004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60019606 (or 60019604 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 2640862004 is about 51389.3179950853. The cubic root of 2640862004 is about 1382.2350541904.

The spelling of 2640862004 in words is "two billion, six hundred forty million, eight hundred sixty-two thousand, four".