3620887920 has 400 divisors, whose sum is σ = 13815803232. Its totient is φ = 873400320.

The previous prime is 3620887903. The next prime is 3620887939. The reversal of 3620887920 is 297880263.

It is a super-2 number, since 2×3620887920² = 26221658658403852800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4464315 + ... + 4465125.

Almost surely, 2^3620887920 is an apocalyptic number.

3620887920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3620887920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6907901616).

3620887920 is an abundant number, since it is smaller than the sum of its proper divisors (10194915312).

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

3620887920 is a wasteful number, since it uses less digits than its factorization.

3620887920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 887 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 3620887920 is about 60173.8142384210. The cubic root of 3620887920 is about 1535.5773373194.

The spelling of 3620887920 in words is "three billion, six hundred twenty million, eight hundred eighty-seven thousand, nine hundred twenty".