3620920 has 16 divisors (see below), whose sum is σ = 8147160. Its totient is φ = 1448352.

The previous prime is 3620917. The next prime is 3620921. The reversal of 3620920 is 290263.

It is a super-2 number, since 2×3620920² = 26222123292800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3620891 and 3620900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3620921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45222 + ... + 45301.

Almost surely, 2^3620920 is an apocalyptic number.

It is an amenable number.

3620920 is an abundant number, since it is smaller than the sum of its proper divisors (4526240).

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

3620920 is a wasteful number, since it uses less digits than its factorization.

3620920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90534 (or 90530 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3620920 is about 1902.8715143172. The cubic root of 3620920 is about 153.5581872227.

The spelling of 3620920 in words is "three million, six hundred twenty thousand, nine hundred twenty".