190643486 has 12 divisors (see below), whose sum is σ = 314325816. Its totient is φ = 86656020.

The previous prime is 190643461. The next prime is 190643501. The reversal of 190643486 is 684346091.

190643486 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 393650 + ... + 394133.

It is an arithmetic number, because the mean of its divisors is an integer number (26193818).

Almost surely, 2^190643486 is an apocalyptic number.

190643486 is a deficient number, since it is larger than the sum of its proper divisors (123682330).

190643486 is a wasteful number, since it uses less digits than its factorization.

190643486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787807 (or 787796 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 190643486 is about 13807.3707127751. The cubic root of 190643486 is about 575.5379826949.

The spelling of 190643486 in words is "one hundred ninety million, six hundred forty-three thousand, four hundred eighty-six".