9902942 has 16 divisors (see below), whose sum is σ = 17975520. Its totient is φ = 3994368.

The previous prime is 9902929. The next prime is 9902951. The reversal of 9902942 is 2492099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20567 + ... + 21042.

It is an arithmetic number, because the mean of its divisors is an integer number (1123470).

Almost surely, 2^9902942 is an apocalyptic number.

9902942 is a deficient number, since it is larger than the sum of its proper divisors (8072578).

9902942 is a wasteful number, since it uses less digits than its factorization.

9902942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41635.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 9902942 is about 3146.8940242722. The cubic root of 9902942 is about 214.7441846546.

The spelling of 9902942 in words is "nine million, nine hundred two thousand, nine hundred forty-two".