190374881 has 4 divisors (see below), whose sum is σ = 190402500. Its totient is φ = 190347264.

The previous prime is 190374871. The next prime is 190374883. The reversal of 190374881 is 188473091.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 81360400 + 109014481 = 9020^2 + 10441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190374881 is a prime.

It is a super-2 number, since 2×190374881² = 72485190631528322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190374883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6065 + ... + 20433.

It is an arithmetic number, because the mean of its divisors is an integer number (47600625).

Almost surely, 2^190374881 is an apocalyptic number.

It is an amenable number.

190374881 is a deficient number, since it is larger than the sum of its proper divisors (27619).

190374881 is a wasteful number, since it uses less digits than its factorization.

190374881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27618.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 190374881 is about 13797.6404142158. The cubic root of 190374881 is about 575.2675563899.

The spelling of 190374881 in words is "one hundred ninety million, three hundred seventy-four thousand, eight hundred eighty-one".