505788738 has 32 divisors (see below), whose sum is σ = 1245019776. Its totient is φ = 133394688.

The previous prime is 505788697. The next prime is 505788763. The reversal of 505788738 is 837887505.

It is a Curzon 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, 462631 + ... + 463722.

It is an arithmetic number, because the mean of its divisors is an integer number (38906868).

Almost surely, 2^505788738 is an apocalyptic number.

505788738 is an abundant number, since it is smaller than the sum of its proper divisors (739231038).

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

505788738 is a wasteful number, since it uses less digits than its factorization.

505788738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926378.

The product of its (nonzero) digits is 1881600, while the sum is 51.

The square root of 505788738 is about 22489.7473974253. The cubic root of 505788738 is about 796.7517970298.

The spelling of 505788738 in words is "five hundred five million, seven hundred eighty-eight thousand, seven hundred thirty-eight".