72936942 has 24 divisors (see below), whose sum is σ = 157257576. Its totient is φ = 22418928.

The previous prime is 72936923. The next prime is 72936949. The reversal of 72936942 is 24963927.

It is a happy number.

It is a super-2 number, since 2×72936942² = 10639595016622728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72936894 and 72936903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72936949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74943 + ... + 75909.

It is an arithmetic number, because the mean of its divisors is an integer number (6552399).

Almost surely, 2^72936942 is an apocalyptic number.

72936942 is an abundant number, since it is smaller than the sum of its proper divisors (84320634).

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

72936942 is an equidigital number, since it uses as much as digits as its factorization.

72936942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 985 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 72936942 is about 8540.3127577390. The cubic root of 72936942 is about 417.8135467201.

The spelling of 72936942 in words is "seventy-two million, nine hundred thirty-six thousand, nine hundred forty-two".