3622920 has 128 divisors (see below), whose sum is σ = 13132800. Its totient is φ = 781056.

The previous prime is 3622919. The next prime is 3622951. The reversal of 3622920 is 292263.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15847 + ... + 16073.

It is an arithmetic number, because the mean of its divisors is an integer number (102600).

Almost surely, 2^3622920 is an apocalyptic number.

3622920 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 3622920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6566400).

3622920 is an abundant number, since it is smaller than the sum of its proper divisors (9509880).

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

3622920 is a wasteful number, since it uses less digits than its factorization.

3622920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3622920 is about 1903.3969633264. The cubic root of 3622920 is about 153.5864544261.

The spelling of 3622920 in words is "three million, six hundred twenty-two thousand, nine hundred twenty".