199464920 has 32 divisors (see below), whose sum is σ = 449446320. Its totient is φ = 79670400.

The previous prime is 199464919. The next prime is 199464953. The reversal of 199464920 is 29464991.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27695 + ... + 34145.

Almost surely, 2^199464920 is an apocalyptic number.

199464920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199464920 is an abundant number, since it is smaller than the sum of its proper divisors (249981400).

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

199464920 is a wasteful number, since it uses less digits than its factorization.

199464920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7235 (or 7231 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 199464920 is about 14123.2050186918. The cubic root of 199464920 is about 584.2815540478.

The spelling of 199464920 in words is "one hundred ninety-nine million, four hundred sixty-four thousand, nine hundred twenty".