72380157 has 16 divisors (see below), whose sum is σ = 98212800. Its totient is φ = 47405952.

The previous prime is 72380131. The next prime is 72380159. The reversal of 72380157 is 75108327.

It is not a de Polignac number, because 72380157 - 2⁶ = 72380093 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 75958 + ... + 76904.

It is an arithmetic number, because the mean of its divisors is an integer number (6138300).

Almost surely, 2^72380157 is an apocalyptic number.

It is an amenable number.

72380157 is a deficient number, since it is larger than the sum of its proper divisors (25832643).

72380157 is a wasteful number, since it uses less digits than its factorization.

72380157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 72380157 is about 8507.6528490530. The cubic root of 72380157 is about 416.7476634716.

The spelling of 72380157 in words is "seventy-two million, three hundred eighty thousand, one hundred fifty-seven".