205785452 has 12 divisors (see below), whose sum is σ = 366028656. Its totient is φ = 101205840.

The previous prime is 205785449. The next prime is 205785473. The reversal of 205785452 is 254587502.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421448 + ... + 421935.

It is an arithmetic number, because the mean of its divisors is an integer number (30502388).

Almost surely, 2^205785452 is an apocalyptic number.

It is an amenable number.

205785452 is a deficient number, since it is larger than the sum of its proper divisors (160243204).

205785452 is a wasteful number, since it uses less digits than its factorization.

205785452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843448 (or 843446 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 38.

The square root of 205785452 is about 14345.2240135872. The cubic root of 205785452 is about 590.3889535258.

The spelling of 205785452 in words is "two hundred five million, seven hundred eighty-five thousand, four hundred fifty-two".