9402638 has 16 divisors (see below), whose sum is σ = 16494720. Its totient is φ = 3935736.

The previous prime is 9402623. The next prime is 9402643. The reversal of 9402638 is 8362049.

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, 7208 + ... + 8411.

It is an arithmetic number, because the mean of its divisors is an integer number (1030920).

Almost surely, 2^9402638 is an apocalyptic number.

9402638 is a deficient number, since it is larger than the sum of its proper divisors (7092082).

9402638 is a wasteful number, since it uses less digits than its factorization.

9402638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15671.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 9402638 is about 3066.3721235362. The cubic root of 9402638 is about 211.0651700792.

The spelling of 9402638 in words is "nine million, four hundred two thousand, six hundred thirty-eight".