7942312 has 24 divisors (see below), whose sum is σ = 17324010. Its totient is φ = 3403680.

The previous prime is 7942307. The next prime is 7942313. The reversal of 7942312 is 2132497.

It can be written as a sum of positive squares in only one way, i.e., 7918596 + 23716 = 2814^2 + 154^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (7942313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9739 + ... + 10522.

Almost surely, 2^7942312 is an apocalyptic number.

It is an amenable number.

7942312 is an abundant number, since it is smaller than the sum of its proper divisors (9381698).

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

7942312 is a wasteful number, since it uses less digits than its factorization.

7942312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20281 (or 20270 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 7942312 is about 2818.2107799098. The cubic root of 7942312 is about 199.5181064925.

The spelling of 7942312 in words is "seven million, nine hundred forty-two thousand, three hundred twelve".