205420350 has 48 divisors (see below), whose sum is σ = 539416368. Its totient is φ = 51555840.

The previous prime is 205420301. The next prime is 205420363. The reversal of 205420350 is 53024502.

It is a Curzon number.

It is a congruent number.

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, 37729 + ... + 42828.

It is an arithmetic number, because the mean of its divisors is an integer number (11237841).

Almost surely, 2^205420350 is an apocalyptic number.

205420350 is an abundant number, since it is smaller than the sum of its proper divisors (333996018).

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

205420350 is a wasteful number, since it uses less digits than its factorization.

205420350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80589 (or 80584 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 205420350 is about 14332.4928048124. The cubic root of 205420350 is about 590.0395932445.

Adding to 205420350 its reverse (53024502), we get a palindrome (258444852).

The spelling of 205420350 in words is "two hundred five million, four hundred twenty thousand, three hundred fifty".