3621996630 has 48 divisors (see below), whose sum is σ = 10762506144. Its totient is φ = 827884800.

The previous prime is 3621996629. The next prime is 3621996647. The reversal of 3621996630 is 366991263.

It is a happy number.

3621996630 is a `hidden beast` number, since 3 + 6 + 2 + 1 + 9 + 9 + 6 + 630 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2873971 + ... + 2875230.

It is an arithmetic number, because the mean of its divisors is an integer number (224218878).

Almost surely, 2^3621996630 is an apocalyptic number.

3621996630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3621996630 is an abundant number, since it is smaller than the sum of its proper divisors (7140509514).

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

3621996630 is a wasteful number, since it uses less digits than its factorization.

3621996630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749221 (or 5749218 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 3621996630 is about 60183.0260954033. The cubic root of 3621996630 is about 1535.7340517541.

The spelling of 3621996630 in words is "three billion, six hundred twenty-one million, nine hundred ninety-six thousand, six hundred thirty".