190904572 has 18 divisors (see below), whose sum is σ = 345214464. Its totient is φ = 92371320.

The previous prime is 190904557. The next prime is 190904579. The reversal of 190904572 is 275409091.

It is a super-2 number, since 2×190904572² = 72889111221006368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190904579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20988 + ... + 28675.

Almost surely, 2^190904572 is an apocalyptic number.

It is an amenable number.

190904572 is a deficient number, since it is larger than the sum of its proper divisors (154309892).

190904572 is a wasteful number, since it uses less digits than its factorization.

190904572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49729 (or 49696 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 190904572 is about 13816.8220658732. The cubic root of 190904572 is about 575.8005956821.

The spelling of 190904572 in words is "one hundred ninety million, nine hundred four thousand, five hundred seventy-two".