199442464 has 24 divisors (see below), whose sum is σ = 422857260. Its totient is φ = 92050176.

The previous prime is 199442459. The next prime is 199442473. The reversal of 199442464 is 464244991.

It can be written as a sum of positive squares in 2 ways, for example, as 187470864 + 11971600 = 13692^2 + 3460^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 199442464.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239299 + ... + 240130.

Almost surely, 2^199442464 is an apocalyptic number.

It is an amenable number.

199442464 is an abundant number, since it is smaller than the sum of its proper divisors (223414796).

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

199442464 is a wasteful number, since it uses less digits than its factorization.

199442464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479452 (or 479444 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 199442464 is about 14122.4099926323. The cubic root of 199442464 is about 584.2596268521.

The spelling of 199442464 in words is "one hundred ninety-nine million, four hundred forty-two thousand, four hundred sixty-four".