199953404 has 48 divisors (see below), whose sum is σ = 406226688. Its totient is φ = 84354048.

The previous prime is 199953401. The next prime is 199953431. The reversal of 199953404 is 404359991.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199953401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880739 + ... + 880965.

It is an arithmetic number, because the mean of its divisors is an integer number (8463056).

Almost surely, 2^199953404 is an apocalyptic number.

199953404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

199953404 is an abundant number, since it is smaller than the sum of its proper divisors (206273284).

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

199953404 is a wasteful number, since it uses less digits than its factorization.

199953404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 199953404 is about 14140.4881103871. The cubic root of 199953404 is about 584.7581282716.

The spelling of 199953404 in words is "one hundred ninety-nine million, nine hundred fifty-three thousand, four hundred four".