9942438 has 32 divisors (see below), whose sum is σ = 21830400. Its totient is φ = 2993760.

The previous prime is 9942437. The next prime is 9942461. The reversal of 9942438 is 8342499.

Its product of digits (62208) is a multiple of the sum of its prime divisors (972).

It is a junction number, because it is equal to n+sod(n) for n = 9942396 and 9942405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9942437) 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, 12756 + ... + 13512.

It is an arithmetic number, because the mean of its divisors is an integer number (682200).

Almost surely, 2^9942438 is an apocalyptic number.

9942438 is an abundant number, since it is smaller than the sum of its proper divisors (11887962).

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

9942438 is a wasteful number, since it uses less digits than its factorization.

9942438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

The product of its digits is 62208, while the sum is 39.

The square root of 9942438 is about 3153.1631737035. The cubic root of 9942438 is about 215.0292947283.

The spelling of 9942438 in words is "nine million, nine hundred forty-two thousand, four hundred thirty-eight".