9072420 has 48 divisors (see below), whose sum is σ = 29033088. Its totient is φ = 2073600.

The previous prime is 9072383. The next prime is 9072421. The reversal of 9072420 is 242709.

It is not an unprimeable number, because it can be changed into a prime (9072421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10381 + ... + 11220.

It is an arithmetic number, because the mean of its divisors is an integer number (604856).

Almost surely, 2^9072420 is an apocalyptic number.

It is an amenable number.

9072420 is an abundant number, since it is smaller than the sum of its proper divisors (19960668).

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

9072420 is a wasteful number, since it uses less digits than its factorization.

9072420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21620 (or 21618 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 9072420 is about 3012.0458163846. The cubic root of 9072420 is about 208.5648171867.

The spelling of 9072420 in words is "nine million, seventy-two thousand, four hundred twenty".