9942520 has 32 divisors (see below), whose sum is σ = 25567200. Its totient is φ = 3408768.

The previous prime is 9942497. The next prime is 9942523. The reversal of 9942520 is 252499.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942523) 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, 17475 + ... + 18034.

It is an arithmetic number, because the mean of its divisors is an integer number (798975).

Almost surely, 2^9942520 is an apocalyptic number.

It is an amenable number.

9942520 is an abundant number, since it is smaller than the sum of its proper divisors (15624680).

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

9942520 is a wasteful number, since it uses less digits than its factorization.

9942520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35527 (or 35523 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 9942520 is about 3153.1761764925. The cubic root of 9942520 is about 215.0298858762.

The spelling of 9942520 in words is "nine million, nine hundred forty-two thousand, five hundred twenty".