190109374 has 64 divisors (see below), whose sum is σ = 365500800. Its totient is φ = 72161280.

The previous prime is 190109363. The next prime is 190109377. The reversal of 190109374 is 473901091.

It is a Cunningham number, because it is equal to 575³-1.

It is a super-2 number, since 2×190109374² = 72283148165343752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190109377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544552 + ... + 544900.

It is an arithmetic number, because the mean of its divisors is an integer number (5710950).

Almost surely, 2^190109374 is an apocalyptic number.

190109374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

190109374 is a deficient number, since it is larger than the sum of its proper divisors (175391426).

190109374 is a wasteful number, since it uses less digits than its factorization.

190109374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 190109374 is about 13788.0155932607. The cubic root of 190109374 is about 574.9999989918. Note that the first 5 decimals are identical.

The spelling of 190109374 in words is "one hundred ninety million, one hundred nine thousand, three hundred seventy-four".