209430192 has 20 divisors (see below), whose sum is σ = 541028120. Its totient is φ = 69810048.

The previous prime is 209430149. The next prime is 209430233. The reversal of 209430192 is 291034902.

It is a super-2 number, since 2×209430192² = 87722010642313728, which contains 22 as substring.

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, 2181517 + ... + 2181612.

It is an arithmetic number, because the mean of its divisors is an integer number (27051406).

Almost surely, 2^209430192 is an apocalyptic number.

It is an amenable number.

209430192 is an abundant number, since it is smaller than the sum of its proper divisors (331597928).

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

209430192 is a wasteful number, since it uses less digits than its factorization.

209430192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363140 (or 4363134 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 209430192 is about 14471.7031478676. The cubic root of 209430192 is about 593.8541060371.

The spelling of 209430192 in words is "two hundred nine million, four hundred thirty thousand, one hundred ninety-two".