190931692 has 72 divisors (see below), whose sum is σ = 416967264. Its totient is φ = 74677248.

The previous prime is 190931683. The next prime is 190931701. The reversal of 190931692 is 296139091.

190931692 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (190931683) and next prime (190931701).

It is a super-2 number, since 2×190931692² = 72909822019965728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 651498 + ... + 651790.

It is an arithmetic number, because the mean of its divisors is an integer number (5791212).

Almost surely, 2^190931692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190931692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208483632).

190931692 is an abundant number, since it is smaller than the sum of its proper divisors (226035572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190931692 is a wasteful number, since it uses less digits than its factorization.

190931692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 190931692 is about 13817.8034433842. The cubic root of 190931692 is about 575.8278605656.

The spelling of 190931692 in words is "one hundred ninety million, nine hundred thirty-one thousand, six hundred ninety-two".