2640476144 has 10 divisors (see below), whose sum is σ = 5115922560. Its totient is φ = 1320238064.

The previous prime is 2640476141. The next prime is 2640476207. The reversal of 2640476144 is 4416740462.

It is a happy number.

It is a super-2 number, since 2×2640476144² = 13944228534066217472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2640476098 and 2640476107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640476141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82514864 + ... + 82514895.

It is an arithmetic number, because the mean of its divisors is an integer number (511592256).

Almost surely, 2^2640476144 is an apocalyptic number.

It is an amenable number.

2640476144 is a deficient number, since it is larger than the sum of its proper divisors (2475446416).

2640476144 is a wasteful number, since it uses less digits than its factorization.

2640476144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165029767 (or 165029761 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 2640476144 is about 51385.5635757749. The cubic root of 2640476144 is about 1382.1677308195.

The spelling of 2640476144 in words is "two billion, six hundred forty million, four hundred seventy-six thousand, one hundred forty-four".