72442356 has 24 divisors (see below), whose sum is σ = 193179840. Its totient is φ = 20697792.

The previous prime is 72442333. The next prime is 72442373. The reversal of 72442356 is 65324427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431121 + ... + 431288.

It is an arithmetic number, because the mean of its divisors is an integer number (8049160).

Almost surely, 2^72442356 is an apocalyptic number.

It is an amenable number.

72442356 is an abundant number, since it is smaller than the sum of its proper divisors (120737484).

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

72442356 is a wasteful number, since it uses less digits than its factorization.

72442356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862423 (or 862421 counting only the distinct ones).

The product of its digits is 40320, while the sum is 33.

The square root of 72442356 is about 8511.3075376231. The cubic root of 72442356 is about 416.8670049573.

The spelling of 72442356 in words is "seventy-two million, four hundred forty-two thousand, three hundred fifty-six".