190403568 has 80 divisors (see below), whose sum is σ = 570320640. Its totient is φ = 60705216.

The previous prime is 190403557. The next prime is 190403573. The reversal of 190403568 is 865304091.

190403568 is a `hidden beast` number, since 1 + 90 + 4 + 0 + 3 + 568 = 666.

It is a super-4 number, since 4×190403568⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355 + ... + 19517.

It is an arithmetic number, because the mean of its divisors is an integer number (7129008).

Almost surely, 2^190403568 is an apocalyptic number.

190403568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190403568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285160320).

190403568 is an abundant number, since it is smaller than the sum of its proper divisors (379917072).

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

190403568 is a wasteful number, since it uses less digits than its factorization.

190403568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19203 (or 19191 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 190403568 is about 13798.6799368635. The cubic root of 190403568 is about 575.2964500329.

The spelling of 190403568 in words is "one hundred ninety million, four hundred three thousand, five hundred sixty-eight".