190901256 has 96 divisors (see below), whose sum is σ = 597925440. Its totient is φ = 50343552.

The previous prime is 190901237. The next prime is 190901261. The reversal of 190901256 is 652109091.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9045 + ... + 21531.

It is an arithmetic number, because the mean of its divisors is an integer number (6228390).

Almost surely, 2^190901256 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 190901256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298962720).

190901256 is an abundant number, since it is smaller than the sum of its proper divisors (407024184).

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

190901256 is a wasteful number, since it uses less digits than its factorization.

190901256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12523 (or 12512 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 190901256 is about 13816.7020667017. The cubic root of 190901256 is about 575.7972617898.

The spelling of 190901256 in words is "one hundred ninety million, nine hundred one thousand, two hundred fifty-six".