4640631144 has 32 divisors (see below), whose sum is σ = 11604435840. Its totient is φ = 1546496000.

The previous prime is 4640631119. The next prime is 4640631161. The reversal of 4640631144 is 4411360464.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85969 + ... + 129119.

It is an arithmetic number, because the mean of its divisors is an integer number (362638620).

Almost surely, 2^4640631144 is an apocalyptic number.

It is an amenable number.

4640631144 is an abundant number, since it is smaller than the sum of its proper divisors (6963804696).

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

4640631144 is a wasteful number, since it uses less digits than its factorization.

4640631144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47641 (or 47637 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 4640631144 is about 68122.1780626545. The cubic root of 4640631144 is about 1667.9858040416.

The spelling of 4640631144 in words is "four billion, six hundred forty million, six hundred thirty-one thousand, one hundred forty-four".