205057450 has 48 divisors (see below), whose sum is σ = 417785760. Its totient is φ = 74416320.

The previous prime is 205057439. The next prime is 205057487. The reversal of 205057450 is 54750502.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35677 + ... + 41023.

It is an arithmetic number, because the mean of its divisors is an integer number (8703870).

Almost surely, 2^205057450 is an apocalyptic number.

205057450 is an abundant number, since it is smaller than the sum of its proper divisors (212728310).

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

205057450 is a wasteful number, since it uses less digits than its factorization.

205057450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431 (or 5426 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 205057450 is about 14319.8271637614. The cubic root of 205057450 is about 589.6919295635.

It can be divided in two parts, 2050574 and 50, that added together give a square (2050624 = 1432²).

The spelling of 205057450 in words is "two hundred five million, fifty-seven thousand, four hundred fifty".