9972404 has 48 divisors (see below), whose sum is σ = 20638800. Its totient is φ = 4171776.

The previous prime is 9972401. The next prime is 9972439. The reversal of 9972404 is 4042799.

It can be written as a sum of positive squares in 8 ways, for example, as 300304 + 9672100 = 548^2 + 3110^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25442 + ... + 25830.

It is an arithmetic number, because the mean of its divisors is an integer number (429975).

Almost surely, 2^9972404 is an apocalyptic number.

It is an amenable number.

9972404 is an abundant number, since it is smaller than the sum of its proper divisors (10666396).

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

9972404 is a wasteful number, since it uses less digits than its factorization.

9972404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 9972404 is about 3157.9113350441. The cubic root of 9972404 is about 215.2451071590.

The spelling of 9972404 in words is "nine million, nine hundred seventy-two thousand, four hundred four".