3720992 has 54 divisors (see below), whose sum is σ = 8320347. Its totient is φ = 1636800.

The previous prime is 3720989. The next prime is 3721027. The reversal of 3720992 is 2990273.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1860496 + 1860496 = 1364^2 + 1364^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1364.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 120017 + ... + 120047.

Almost surely, 2^3720992 is an apocalyptic number.

3720992 is a gapful number since it is divisible by the number (32) 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 3720992

3720992 is an abundant number, since it is smaller than the sum of its proper divisors (4599355).

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

3720992 is a wasteful number, since it uses less digits than its factorization.

3720992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 3720992 is about 1928.9872990769. The cubic root of 3720992 is about 154.9599896730.

Multiplying 3720992 by its sum of digits (32), we get a square (119071744 = 10912²).

3720992 divided by its sum of digits (32) gives a square (116281 = 341²).

The spelling of 3720992 in words is "three million, seven hundred twenty thousand, nine hundred ninety-two".