190390447 has 8 divisors (see below), whose sum is σ = 206100944. Its totient is φ = 174832128.

The previous prime is 190390441. The next prime is 190390457. The reversal of 190390447 is 744093091.

190390447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190390447 - 2³ = 190390439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190390441) 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, 35433 + ... + 40450.

It is an arithmetic number, because the mean of its divisors is an integer number (25762618).

Almost surely, 2^190390447 is an apocalyptic number.

190390447 is a deficient number, since it is larger than the sum of its proper divisors (15710497).

190390447 is a wasteful number, since it uses less digits than its factorization.

190390447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76089.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 190390447 is about 13798.2044846422. The cubic root of 190390447 is about 575.2832348777.

The spelling of 190390447 in words is "one hundred ninety million, three hundred ninety thousand, four hundred forty-seven".