190013990 has 32 divisors (see below), whose sum is σ = 352256256. Its totient is φ = 73755360.

The previous prime is 190013983. The next prime is 190014007. The reversal of 190013990 is 99310091.

It is a super-2 number, since 2×190013990² = 72210632791440200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68735 + ... + 71445.

It is an arithmetic number, because the mean of its divisors is an integer number (11008008).

Almost surely, 2^190013990 is an apocalyptic number.

190013990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190013990 is a deficient number, since it is larger than the sum of its proper divisors (162242266).

190013990 is a wasteful number, since it uses less digits than its factorization.

190013990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924.

The product of its (nonzero) digits is 2187, while the sum is 32.

The square root of 190013990 is about 13784.5562133861. The cubic root of 190013990 is about 574.9038175605.

The spelling of 190013990 in words is "one hundred ninety million, thirteen thousand, nine hundred ninety".