72030392 has 48 divisors (see below), whose sum is σ = 160117560. Its totient is φ = 30278976.

The previous prime is 72030389. The next prime is 72030397. The reversal of 72030392 is 29303027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72030397) 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 11 ways as a sum of consecutive naturals, for example, 19043 + ... + 22509.

Almost surely, 2^72030392 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 72030392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80058780).

72030392 is an abundant number, since it is smaller than the sum of its proper divisors (88087168).

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

72030392 is a wasteful number, since it uses less digits than its factorization.

72030392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540 (or 3529 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 72030392 is about 8487.0720510668. The cubic root of 72030392 is about 416.0752914758.

The spelling of 72030392 in words is "seventy-two million, thirty thousand, three hundred ninety-two".