72319242 has 16 divisors (see below), whose sum is σ = 147368160. Its totient is φ = 23651472.

The previous prime is 72319237. The next prime is 72319253. The reversal of 72319242 is 24291327.

It is a super-4 number, since 4×72319242⁴ (a number of 33 digits) contains 4444 as substring.

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, 113392 + ... + 114027.

It is an arithmetic number, because the mean of its divisors is an integer number (9210510).

Almost surely, 2^72319242 is an apocalyptic number.

72319242 is an abundant number, since it is smaller than the sum of its proper divisors (75048918).

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

72319242 is a wasteful number, since it uses less digits than its factorization.

72319242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227477.

The product of its digits is 6048, while the sum is 30.

The square root of 72319242 is about 8504.0720834198. The cubic root of 72319242 is about 416.6307193166.

The spelling of 72319242 in words is "seventy-two million, three hundred nineteen thousand, two hundred forty-two".