190078928 has 80 divisors (see below), whose sum is σ = 410723712. Its totient is φ = 84672000.

The previous prime is 190078927. The next prime is 190078939. The reversal of 190078928 is 829870091.

It is a super-2 number, since 2×190078928² = 72259997739258368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190078927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 900743 + ... + 900953.

Almost surely, 2^190078928 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 190078928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205361856).

190078928 is an abundant number, since it is smaller than the sum of its proper divisors (220644784).

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

190078928 is a wasteful number, since it uses less digits than its factorization.

190078928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 358 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 190078928 is about 13786.9114742933. The cubic root of 190078928 is about 574.9693019528.

The spelling of 190078928 in words is "one hundred ninety million, seventy-eight thousand, nine hundred twenty-eight".