190901290 has 16 divisors (see below), whose sum is σ = 344060640. Its totient is φ = 76263120.

The previous prime is 190901273. The next prime is 190901309. The reversal of 190901290 is 92109091.

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 7 ways as a sum of consecutive naturals, for example, 3660 + ... + 19879.

It is an arithmetic number, because the mean of its divisors is an integer number (21503790).

Almost surely, 2^190901290 is an apocalyptic number.

190901290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190901290 is a deficient number, since it is larger than the sum of its proper divisors (153159350).

190901290 is a wasteful number, since it uses less digits than its factorization.

190901290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24357.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 190901290 is about 13816.7032970966. The cubic root of 190901290 is about 575.7972959735.

It can be divided in two parts, 190901 and 290, that added together give a palindrome (191191).

The spelling of 190901290 in words is "one hundred ninety million, nine hundred one thousand, two hundred ninety".