4630656440 has 64 divisors (see below), whose sum is σ = 11234916000. Its totient is φ = 1711964160.

The previous prime is 4630656413. The next prime is 4630656467. The reversal of 4630656440 is 446560364.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4630656413) and next prime (4630656467).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 4630656394 and 4630656403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43145 + ... + 105464.

Almost surely, 2^4630656440 is an apocalyptic number.

4630656440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4630656440 is an abundant number, since it is smaller than the sum of its proper divisors (6604259560).

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

4630656440 is a wasteful number, since it uses less digits than its factorization.

4630656440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148680 (or 148676 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 4630656440 is about 68048.9268100534. The cubic root of 4630656440 is about 1666.7898748027.

The spelling of 4630656440 in words is "four billion, six hundred thirty million, six hundred fifty-six thousand, four hundred forty".