72190942 has 8 divisors (see below), whose sum is σ = 114656256. Its totient is φ = 33972192.

The previous prime is 72190939. The next prime is 72190969. The reversal of 72190942 is 24909127.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 2123263 = 72190942 / (7 + 2 + 1 + 9 + 0 + 9 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 72190898 and 72190907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061598 + ... + 1061665.

It is an arithmetic number, because the mean of its divisors is an integer number (14332032).

Almost surely, 2^72190942 is an apocalyptic number.

72190942 is a deficient number, since it is larger than the sum of its proper divisors (42465314).

72190942 is a wasteful number, since it uses less digits than its factorization.

72190942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123282.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 72190942 is about 8496.5252897876. The cubic root of 72190942 is about 416.3841949644.

The spelling of 72190942 in words is "seventy-two million, one hundred ninety thousand, nine hundred forty-two".