72370424 has 16 divisors (see below), whose sum is σ = 155079600. Its totient is φ = 31015872.

The previous prime is 72370423. The next prime is 72370433. The reversal of 72370424 is 42407327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72370421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646109 + ... + 646220.

It is an arithmetic number, because the mean of its divisors is an integer number (9692475).

Almost surely, 2^72370424 is an apocalyptic number.

It is an amenable number.

72370424 is an abundant number, since it is smaller than the sum of its proper divisors (82709176).

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

72370424 is a wasteful number, since it uses less digits than its factorization.

72370424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292342 (or 1292338 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 72370424 is about 8507.0808154149. The cubic root of 72370424 is about 416.7289825375.

The spelling of 72370424 in words is "seventy-two million, three hundred seventy thousand, four hundred twenty-four".