205413770 has 32 divisors (see below), whose sum is σ = 375408000. Its totient is φ = 80917056.

The previous prime is 205413749. The next prime is 205413787. The reversal of 205413770 is 77314502.

It is a super-2 number, since 2×205413770² = 84389633811225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216437 + ... + 217383.

It is an arithmetic number, because the mean of its divisors is an integer number (11731500).

Almost surely, 2^205413770 is an apocalyptic number.

205413770 is a deficient number, since it is larger than the sum of its proper divisors (169994230).

205413770 is a wasteful number, since it uses less digits than its factorization.

205413770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 205413770 is about 14332.2632546294. The cubic root of 205413770 is about 590.0332931514.

The spelling of 205413770 in words is "two hundred five million, four hundred thirteen thousand, seven hundred seventy".