3791220 has 48 divisors (see below), whose sum is σ = 10704960. Its totient is φ = 1002496.

The previous prime is 3791219. The next prime is 3791231. The reversal of 3791220 is 221973.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10564 + ... + 10916.

It is an arithmetic number, because the mean of its divisors is an integer number (223020).

Almost surely, 2^3791220 is an apocalyptic number.

3791220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3791220 is an abundant number, since it is smaller than the sum of its proper divisors (6913740).

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

3791220 is a wasteful number, since it uses less digits than its factorization.

3791220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 3791220 is about 1947.1055441347. The cubic root of 3791220 is about 155.9287972233.

The spelling of 3791220 in words is "three million, seven hundred ninety-one thousand, two hundred twenty".