72380154 has 48 divisors (see below), whose sum is σ = 183711456. Its totient is φ = 18799200.

The previous prime is 72380131. The next prime is 72380159. The reversal of 72380154 is 45108327.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72380159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7957 + ... + 14424.

It is an arithmetic number, because the mean of its divisors is an integer number (3827322).

Almost surely, 2^72380154 is an apocalyptic number.

72380154 is an abundant number, since it is smaller than the sum of its proper divisors (111331302).

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

72380154 is a wasteful number, since it uses less digits than its factorization.

72380154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22411 (or 22404 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 72380154 is about 8507.6526727412. The cubic root of 72380154 is about 416.7476577138.

The spelling of 72380154 in words is "seventy-two million, three hundred eighty thousand, one hundred fifty-four".