72340824 has 16 divisors (see below), whose sum is σ = 180852120. Its totient is φ = 24113600.

The previous prime is 72340817. The next prime is 72340843. The reversal of 72340824 is 42804327.

It is a junction number, because it is equal to n+sod(n) for n = 72340791 and 72340800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507077 + ... + 1507124.

Almost surely, 2^72340824 is an apocalyptic number.

It is an amenable number.

72340824 is an abundant number, since it is smaller than the sum of its proper divisors (108511296).

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

72340824 is a wasteful number, since it uses less digits than its factorization.

72340824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3014210 (or 3014206 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 72340824 is about 8505.3409102751. The cubic root of 72340824 is about 416.6721597854.

The spelling of 72340824 in words is "seventy-two million, three hundred forty thousand, eight hundred twenty-four".