72380631 has 8 divisors (see below), whose sum is σ = 96557184. Its totient is φ = 48228920.

The previous prime is 72380617. The next prime is 72380657. The reversal of 72380631 is 13608327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72380631 - 2²⁵ = 38826199 is a prime.

It is a super-2 number, since 2×72380631² = 10477911487916322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72380131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2230 + ... + 12236.

It is an arithmetic number, because the mean of its divisors is an integer number (12069648).

Almost surely, 2^72380631 is an apocalyptic number.

72380631 is a deficient number, since it is larger than the sum of its proper divisors (24176553).

72380631 is a wasteful number, since it uses less digits than its factorization.

72380631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12421.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 72380631 is about 8507.6807062795. The cubic root of 72380631 is about 416.7485731959.

Adding to 72380631 its reverse (13608327), we get a palindrome (85988958).

The spelling of 72380631 in words is "seventy-two million, three hundred eighty thousand, six hundred thirty-one".