505402488 has 96 divisors (see below), whose sum is σ = 1443031200. Its totient is φ = 159554304.

The previous prime is 505402463. The next prime is 505402493. The reversal of 505402488 is 884204505.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108381 + ... + 112947.

It is an arithmetic number, because the mean of its divisors is an integer number (15031575).

Almost surely, 2^505402488 is an apocalyptic number.

505402488 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505402488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721515600).

505402488 is an abundant number, since it is smaller than the sum of its proper divisors (937628712).

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

505402488 is a wasteful number, since it uses less digits than its factorization.

505402488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661 (or 4654 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 505402488 is about 22481.1585110732. The cubic root of 505402488 is about 796.5489298844.

The spelling of 505402488 in words is "five hundred five million, four hundred two thousand, four hundred eighty-eight".