205013442 has 16 divisors (see below), whose sum is σ = 410256000. Its totient is φ = 68299632.

The previous prime is 205013359. The next prime is 205013491. The reversal of 205013442 is 244310502.

It is a super-2 number, since 2×205013442² = 84061022801374728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3448 + ... + 20540.

It is an arithmetic number, because the mean of its divisors is an integer number (25641000).

Almost surely, 2^205013442 is an apocalyptic number.

205013442 is an abundant number, since it is smaller than the sum of its proper divisors (205242558).

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

205013442 is a wasteful number, since it uses less digits than its factorization.

205013442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19097.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 205013442 is about 14318.2904705834. The cubic root of 205013442 is about 589.6497413553.

Adding to 205013442 its reverse (244310502), we get a palindrome (449323944).

The spelling of 205013442 in words is "two hundred five million, thirteen thousand, four hundred forty-two".