205407472 has 20 divisors (see below), whose sum is σ = 401699736. Its totient is φ = 101743040.

The previous prime is 205407463. The next prime is 205407479. The reversal of 205407472 is 274704502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205407479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58279 + ... + 61702.

Almost surely, 2^205407472 is an apocalyptic number.

It is an amenable number.

205407472 is a deficient number, since it is larger than the sum of its proper divisors (196292264).

205407472 is a wasteful number, since it uses less digits than its factorization.

205407472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120096 (or 120090 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 205407472 is about 14332.0435388677. The cubic root of 205407472 is about 590.0272629363.

The spelling of 205407472 in words is "two hundred five million, four hundred seven thousand, four hundred seventy-two".