190378428 has 24 divisors (see below), whose sum is σ = 449570688. Its totient is φ = 62694576.

The previous prime is 190378421. The next prime is 190378469. The reversal of 190378428 is 824873091.

It is a self number, because there is not a number n which added to its sum of digits gives 190378428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190378421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94576 + ... + 96567.

It is an arithmetic number, because the mean of its divisors is an integer number (18732112).

Almost surely, 2^190378428 is an apocalyptic number.

It is an amenable number.

190378428 is an abundant number, since it is smaller than the sum of its proper divisors (259192260).

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

190378428 is a wasteful number, since it uses less digits than its factorization.

190378428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191233 (or 191231 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 190378428 is about 13797.7689500875. The cubic root of 190378428 is about 575.2711290975.

The spelling of 190378428 in words is "one hundred ninety million, three hundred seventy-eight thousand, four hundred twenty-eight".