7212942 has 32 divisors (see below), whose sum is σ = 17487360. Its totient is φ = 2185560.

The previous prime is 7212917. The next prime is 7212943. The reversal of 7212942 is 2492127.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212943) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5478 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (546480).

Almost surely, 2^7212942 is an apocalyptic number.

7212942 is an abundant number, since it is smaller than the sum of its proper divisors (10274418).

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

7212942 is a wasteful number, since it uses less digits than its factorization.

7212942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12165 (or 12159 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 7212942 is about 2685.6920895739. The cubic root of 7212942 is about 193.2135054793.

It can be divided in two parts, 721 and 2942, that added together give a palindrome (3663).

The spelling of 7212942 in words is "seven million, two hundred twelve thousand, nine hundred forty-two".