3622616640 has 84 divisors (see below), whose sum is σ = 12460301724. Its totient is φ = 966030336.

The previous prime is 3622616639. The next prime is 3622616659. The reversal of 3622616640 is 466162263.

3622616640 is a `hidden beast` number, since 3 + 6 + 2 + 2 + 6 + 1 + 6 + 640 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 447068736 + 3175547904 = 21144^2 + 56352^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3622616595 and 3622616604.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 626047 + ... + 631806.

Almost surely, 2^3622616640 is an apocalyptic number.

3622616640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3622616640 is an abundant number, since it is smaller than the sum of its proper divisors (8837685084).

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

3622616640 is a wasteful number, since it uses less digits than its factorization.

3622616640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257876 (or 1257863 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 3622616640 is about 60188.1769120813. The cubic root of 3622616640 is about 1535.8216752614.

The spelling of 3622616640 in words is "three billion, six hundred twenty-two million, six hundred sixteen thousand, six hundred forty".