7242156 has 24 divisors (see below), whose sum is σ = 18776240. Its totient is φ = 2414016.

The previous prime is 7242149. The next prime is 7242181. The reversal of 7242156 is 6512427.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33421 + ... + 33636.

Almost surely, 2^7242156 is an apocalyptic number.

It is an amenable number.

7242156 is an abundant number, since it is smaller than the sum of its proper divisors (11534084).

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

7242156 is a wasteful number, since it uses less digits than its factorization.

7242156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67070 (or 67062 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 7242156 is about 2691.1254151377. The cubic root of 7242156 is about 193.4740064837.

The spelling of 7242156 in words is "seven million, two hundred forty-two thousand, one hundred fifty-six".