190634646 has 8 divisors (see below), whose sum is σ = 381269304. Its totient is φ = 63544880.

The previous prime is 190634641. The next prime is 190634659. The reversal of 190634646 is 646436091.

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

190634646 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190634641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15886215 + ... + 15886226.

It is an arithmetic number, because the mean of its divisors is an integer number (47658663).

Almost surely, 2^190634646 is an apocalyptic number.

190634646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

190634646 is a wasteful number, since it uses less digits than its factorization.

190634646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31772446.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 190634646 is about 13807.0505901876. The cubic root of 190634646 is about 575.5290867980.

The spelling of 190634646 in words is "one hundred ninety million, six hundred thirty-four thousand, six hundred forty-six".