15790420 has 24 divisors (see below), whose sum is σ = 34602624. Its totient is φ = 6041376.

The previous prime is 15790381. The next prime is 15790421. The reversal of 15790420 is 2409751.

15790420 = 1019² + 1020² + ... + 1033².

It is a happy number.

15790420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15790421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16704 + ... + 17623.

It is an arithmetic number, because the mean of its divisors is an integer number (1441776).

Almost surely, 2^15790420 is an apocalyptic number.

15790420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15790420 is an abundant number, since it is smaller than the sum of its proper divisors (18812204).

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

15790420 is a wasteful number, since it uses less digits than its factorization.

15790420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34359 (or 34357 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 15790420 is about 3973.7161448699. The cubic root of 15790420 is about 250.8791447938.

The spelling of 15790420 in words is "fifteen million, seven hundred ninety thousand, four hundred twenty".