505380402 has 24 divisors (see below), whose sum is σ = 1101327084. Its totient is φ = 167485344.

The previous prime is 505380347. The next prime is 505380413. The reversal of 505380402 is 204083505.

It can be written as a sum of positive squares in 2 ways, for example, as 468765801 + 36614601 = 21651^2 + 6051^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78033 + ... + 84260.

Almost surely, 2^505380402 is an apocalyptic number.

505380402 is an abundant number, since it is smaller than the sum of its proper divisors (595946682).

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

505380402 is a wasteful number, since it uses less digits than its factorization.

505380402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162474 (or 162471 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 505380402 is about 22480.6672943665. The cubic root of 505380402 is about 796.5373266992.

The spelling of 505380402 in words is "five hundred five million, three hundred eighty thousand, four hundred two".