190564436 has 6 divisors (see below), whose sum is σ = 333487770. Its totient is φ = 95282216.

The previous prime is 190564421. The next prime is 190564447. The reversal of 190564436 is 634465091.

190564436 is digitally balanced in base 2, 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 only one way, i.e., 165122500 + 25441936 = 12850^2 + 5044^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 190564436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23820551 + ... + 23820558.

It is an arithmetic number, because the mean of its divisors is an integer number (55581295).

Almost surely, 2^190564436 is an apocalyptic number.

It is an amenable number.

190564436 is a deficient number, since it is larger than the sum of its proper divisors (142923334).

190564436 is a wasteful number, since it uses less digits than its factorization.

190564436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47641113 (or 47641111 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 190564436 is about 13804.5078144786. The cubic root of 190564436 is about 575.4584230795.

The spelling of 190564436 in words is "one hundred ninety million, five hundred sixty-four thousand, four hundred thirty-six".