72040692 has 24 divisors (see below), whose sum is σ = 175404096. Its totient is φ = 22969408.

The previous prime is 72040691. The next prime is 72040693. The reversal of 72040692 is 29604027.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72040691) and next prime (72040693).

It is a super-2 number, since 2×72040692² = 10379722607677728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72040691) by changing a digit.

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, 130233 + ... + 130784.

It is an arithmetic number, because the mean of its divisors is an integer number (7308504).

Almost surely, 2^72040692 is an apocalyptic number.

It is an amenable number.

72040692 is an abundant number, since it is smaller than the sum of its proper divisors (103363404).

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

72040692 is a wasteful number, since it uses less digits than its factorization.

72040692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261047 (or 261045 counting only the distinct ones).

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

The square root of 72040692 is about 8487.6788346402. The cubic root of 72040692 is about 416.0951227865.

The spelling of 72040692 in words is "seventy-two million, forty thousand, six hundred ninety-two".