505405974 has 32 divisors (see below), whose sum is σ = 1027054080. Its totient is φ = 165771200.

The previous prime is 505405921. The next prime is 505405981. The reversal of 505405974 is 479504505.

It is a congruent number.

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, 323407 + ... + 324965.

It is an arithmetic number, because the mean of its divisors is an integer number (32095440).

Almost surely, 2^505405974 is an apocalyptic number.

505405974 is an abundant number, since it is smaller than the sum of its proper divisors (521648106).

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

505405974 is a wasteful number, since it uses less digits than its factorization.

505405974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396.

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 505405974 is about 22481.2360425311. The cubic root of 505405974 is about 796.5507612717.

The spelling of 505405974 in words is "five hundred five million, four hundred five thousand, nine hundred seventy-four".