9402428 has 24 divisors (see below), whose sum is σ = 19912032. Its totient is φ = 3792384.

The previous prime is 9402413. The next prime is 9402439. The reversal of 9402428 is 8242049.

It is a self number, because there is not a number n which added to its sum of digits gives 9402428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9401 + ... + 10352.

It is an arithmetic number, because the mean of its divisors is an integer number (829668).

Almost surely, 2^9402428 is an apocalyptic number.

It is an amenable number.

9402428 is an abundant number, since it is smaller than the sum of its proper divisors (10509604).

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

9402428 is a wasteful number, since it uses less digits than its factorization.

9402428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19781 (or 19779 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 9402428 is about 3066.3378809257. The cubic root of 9402428 is about 211.0635987465.

The spelling of 9402428 in words is "nine million, four hundred two thousand, four hundred twenty-eight".