3629644956 has 72 divisors (see below), whose sum is σ = 10492145664. Its totient is φ = 1036398240.

The previous prime is 3629644943. The next prime is 3629645009. The reversal of 3629644956 is 6594469263.

3629644956 is a `hidden beast` number, since 3 + 62 + 96 + 4 + 495 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 528561 + ... + 535383.

Almost surely, 2^3629644956 is an apocalyptic number.

3629644956 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3629644956 is an abundant number, since it is smaller than the sum of its proper divisors (6862500708).

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

3629644956 is a wasteful number, since it uses less digits than its factorization.

3629644956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951 (or 8946 counting only the distinct ones).

The product of its digits is 8398080, while the sum is 54.

The square root of 3629644956 is about 60246.5348049164. The cubic root of 3629644956 is about 1536.8142604494.

The spelling of 3629644956 in words is "three billion, six hundred twenty-nine million, six hundred forty-four thousand, nine hundred fifty-six".