7949942 has 72 divisors (see below), whose sum is σ = 17026128. Its totient is φ = 2708640.

The previous prime is 7949933. The next prime is 7950001. The reversal of 7949942 is 2499497.

It is a junction number, because it is equal to n+sod(n) for n = 7949893 and 7949902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 418409 + ... + 418427.

It is an arithmetic number, because the mean of its divisors is an integer number (236474).

Almost surely, 2^7949942 is an apocalyptic number.

7949942 is an abundant number, since it is smaller than the sum of its proper divisors (9076186).

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

7949942 is a wasteful number, since it uses less digits than its factorization.

7949942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 52 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 7949942 is about 2819.5641507155. The cubic root of 7949942 is about 199.5819768921.

It can be divided in two parts, 7 and 949942, that added together give a palindrome (949949).

The spelling of 7949942 in words is "seven million, nine hundred forty-nine thousand, nine hundred forty-two".