505403970 has 16 divisors (see below), whose sum is σ = 1212969600. Its totient is φ = 134774384.

The previous prime is 505403953. The next prime is 505404017. The reversal of 505403970 is 79304505.

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, 8423370 + ... + 8423429.

It is an arithmetic number, because the mean of its divisors is an integer number (75810600).

Almost surely, 2^505403970 is an apocalyptic number.

505403970 is an abundant number, since it is smaller than the sum of its proper divisors (707565630).

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

505403970 is a wasteful number, since it uses less digits than its factorization.

505403970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846809.

The product of its (nonzero) digits is 18900, while the sum is 33.

The square root of 505403970 is about 22481.1914719839. The cubic root of 505403970 is about 796.5497084614.

The spelling of 505403970 in words is "five hundred five million, four hundred three thousand, nine hundred seventy".