505432470 has 16 divisors (see below), whose sum is σ = 1213038000. Its totient is φ = 134781984.

The previous prime is 505432451. The next prime is 505432489. The reversal of 505432470 is 74234505.

It is an interprime number because it is at equal distance from previous prime (505432451) and next prime (505432489).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 16847749 = 505432470 / (5 + 0 + 5 + 4 + 3 + 2 + 4 + 7 + 0).

It is a congruent number.

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, 8423845 + ... + 8423904.

It is an arithmetic number, because the mean of its divisors is an integer number (75814875).

Almost surely, 2^505432470 is an apocalyptic number.

505432470 is an abundant number, since it is smaller than the sum of its proper divisors (707605530).

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

505432470 is a wasteful number, since it uses less digits than its factorization.

505432470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16847759.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 505432470 is about 22481.8253262496. The cubic root of 505432470 is about 796.5646808013.

Adding to 505432470 its reverse (74234505), we get a palindrome (579666975).

The spelling of 505432470 in words is "five hundred five million, four hundred thirty-two thousand, four hundred seventy".