409205022 has 64 divisors (see below), whose sum is σ = 883353600. Its totient is φ = 126080640.

The previous prime is 409205009. The next prime is 409205057. The reversal of 409205022 is 220502904.

It is a junction number, because it is equal to n+sod(n) for n = 409204983 and 409205001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576804 + ... + 577512.

It is an arithmetic number, because the mean of its divisors is an integer number (13802400).

Almost surely, 2^409205022 is an apocalyptic number.

409205022 is an abundant number, since it is smaller than the sum of its proper divisors (474148578).

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

409205022 is a wasteful number, since it uses less digits than its factorization.

409205022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 409205022 is about 20228.8166238166. The cubic root of 409205022 is about 742.4154223516.

Adding to 409205022 its reverse (220502904), we get a palindrome (629707926).

The spelling of 409205022 in words is "four hundred nine million, two hundred five thousand, twenty-two".