72092340 has 72 divisors (see below), whose sum is σ = 220988040. Its totient is φ = 19021824.

The previous prime is 72092311. The next prime is 72092353. The reversal of 72092340 is 4329027.

It can be written as a sum of positive squares in 4 ways, for example, as 7257636 + 64834704 = 2694^2 + 8052^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15396 + ... + 19524.

Almost surely, 2^72092340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72092340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110494020).

72092340 is an abundant number, since it is smaller than the sum of its proper divisors (148895700).

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

72092340 is a wasteful number, since it uses less digits than its factorization.

72092340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4241 (or 4236 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 72092340 is about 8490.7208174571. The cubic root of 72092340 is about 416.1945358017.

The spelling of 72092340 in words is "seventy-two million, ninety-two thousand, three hundred forty".