205140924 has 30 divisors (see below), whose sum is σ = 536279744. Its totient is φ = 68380200.

The previous prime is 205140893. The next prime is 205140931. The reversal of 205140924 is 429041502.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 316252 + ... + 316899.

Almost surely, 2^205140924 is an apocalyptic number.

It is an amenable number.

205140924 is an abundant number, since it is smaller than the sum of its proper divisors (331138820).

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

205140924 is a wasteful number, since it uses less digits than its factorization.

205140924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633167 (or 633156 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 205140924 is about 14322.7414973531. The cubic root of 205140924 is about 589.7719352177.

The spelling of 205140924 in words is "two hundred five million, one hundred forty thousand, nine hundred twenty-four".