205192872 has 32 divisors (see below), whose sum is σ = 569980800. Its totient is φ = 68397552.

The previous prime is 205192859. The next prime is 205192909. The reversal of 205192872 is 278291502.

It is a super-2 number, since 2×205192872² = 84208229439216768, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474768 + ... + 475199.

It is an arithmetic number, because the mean of its divisors is an integer number (17811900).

Almost surely, 2^205192872 is an apocalyptic number.

It is an amenable number.

205192872 is an abundant number, since it is smaller than the sum of its proper divisors (364787928).

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

205192872 is a wasteful number, since it uses less digits than its factorization.

205192872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949982 (or 949972 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 205192872 is about 14324.5548621938. The cubic root of 205192872 is about 589.8217138222.

The spelling of 205192872 in words is "two hundred five million, one hundred ninety-two thousand, eight hundred seventy-two".