190425888 has 36 divisors (see below), whose sum is σ = 541524438. Its totient is φ = 63475200.

The previous prime is 190425877. The next prime is 190425929. The reversal of 190425888 is 888524091.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 127509264 + 62916624 = 11292^2 + 7932^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 5 ways as a sum of consecutive naturals, for example, 330313 + ... + 330888.

Almost surely, 2^190425888 is an apocalyptic number.

190425888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

190425888 is an abundant number, since it is smaller than the sum of its proper divisors (351098550).

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

190425888 is a wasteful number, since it uses less digits than its factorization.

190425888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661217 (or 661206 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 190425888 is about 13799.4886861796. The cubic root of 190425888 is about 575.3189288047.

The spelling of 190425888 in words is "one hundred ninety million, four hundred twenty-five thousand, eight hundred eighty-eight".