199293864 has 64 divisors (see below), whose sum is σ = 621181440. Its totient is φ = 51764160.

The previous prime is 199293847. The next prime is 199293883. The reversal of 199293864 is 468392991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52074 + ... + 55769.

It is an arithmetic number, because the mean of its divisors is an integer number (9705960).

Almost surely, 2^199293864 is an apocalyptic number.

199293864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

199293864 is an abundant number, since it is smaller than the sum of its proper divisors (421887576).

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

199293864 is a wasteful number, since it uses less digits than its factorization.

199293864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107870 (or 107866 counting only the distinct ones).

The product of its digits is 839808, while the sum is 51.

The square root of 199293864 is about 14117.1478705863. The cubic root of 199293864 is about 584.1144846550.

The spelling of 199293864 in words is "one hundred ninety-nine million, two hundred ninety-three thousand, eight hundred sixty-four".