199023804 has 72 divisors (see below), whose sum is σ = 596272768. Its totient is φ = 56862000.

The previous prime is 199023793. The next prime is 199023817. The reversal of 199023804 is 408320991.

It is a super-2 number, since 2×199023804² = 79220949117260832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7822 + ... + 21429.

Almost surely, 2^199023804 is an apocalyptic number.

199023804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

199023804 is an abundant number, since it is smaller than the sum of its proper divisors (397248964).

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

199023804 is a wasteful number, since it uses less digits than its factorization.

199023804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29277 (or 29263 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 199023804 is about 14107.5796648468. The cubic root of 199023804 is about 583.8505239201.

The spelling of 199023804 in words is "one hundred ninety-nine million, twenty-three thousand, eight hundred four".