190774404 has 72 divisors (see below), whose sum is σ = 492524760. Its totient is φ = 62249472.

The previous prime is 190774387. The next prime is 190774411. The reversal of 190774404 is 404477091.

190774404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30802500 + 159971904 = 5550^2 + 12648^2 .

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 23 ways as a sum of consecutive naturals, for example, 601654 + ... + 601970.

Almost surely, 2^190774404 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 190774404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246262380).

190774404 is an abundant number, since it is smaller than the sum of its proper divisors (301750356).

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

190774404 is a wasteful number, since it uses less digits than its factorization.

190774404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 190774404 is about 13812.1107727965. The cubic root of 190774404 is about 575.6696963316.

The spelling of 190774404 in words is "one hundred ninety million, seven hundred seventy-four thousand, four hundred four".