205726072 has 32 divisors (see below), whose sum is σ = 413715600. Its totient is φ = 95606784.

The previous prime is 205726063. The next prime is 205726111. The reversal of 205726072 is 270627502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4713 + ... + 20824.

Almost surely, 2^205726072 is an apocalyptic number.

It is an amenable number.

205726072 is an abundant number, since it is smaller than the sum of its proper divisors (207989528).

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

205726072 is a wasteful number, since it uses less digits than its factorization.

205726072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25615 (or 25611 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 205726072 is about 14343.1541858825. The cubic root of 205726072 is about 590.3321619042.

The spelling of 205726072 in words is "two hundred five million, seven hundred twenty-six thousand, seventy-two".