190640284 has 24 divisors (see below), whose sum is σ = 349493760. Its totient is φ = 90817584.

The previous prime is 190640279. The next prime is 190640309. The reversal of 190640284 is 482046091.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20257 + ... + 28135.

It is an arithmetic number, because the mean of its divisors is an integer number (14562240).

Almost surely, 2^190640284 is an apocalyptic number.

It is an amenable number.

190640284 is a deficient number, since it is larger than the sum of its proper divisors (158853476).

190640284 is a wasteful number, since it uses less digits than its factorization.

190640284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8169 (or 8167 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 190640284 is about 13807.2547597269. The cubic root of 190640284 is about 575.5347604798.

The spelling of 190640284 in words is "one hundred ninety million, six hundred forty thousand, two hundred eighty-four".