72190407 has 8 divisors (see below), whose sum is σ = 97246576. Its totient is φ = 47630592.

The previous prime is 72190403. The next prime is 72190409. The reversal of 72190407 is 70409127.

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

It is not a de Polignac number, because 72190407 - 2² = 72190403 is a prime.

It is a super-2 number, since 2×72190407² = 10422909725651298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72190403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123748 + ... + 124329.

It is an arithmetic number, because the mean of its divisors is an integer number (12155822).

Almost surely, 2^72190407 is an apocalyptic number.

72190407 is a deficient number, since it is larger than the sum of its proper divisors (25056169).

72190407 is a wasteful number, since it uses less digits than its factorization.

72190407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248177.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 72190407 is about 8496.4938062709. The cubic root of 72190407 is about 416.3831663677.

The spelling of 72190407 in words is "seventy-two million, one hundred ninety thousand, four hundred seven".