502474440 has 128 divisors (see below), whose sum is σ = 1718962560. Its totient is φ = 116404224.

The previous prime is 502474433. The next prime is 502474451. The reversal of 502474440 is 44474205.

502474440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 502474398 and 502474407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17047 + ... + 35993.

It is an arithmetic number, because the mean of its divisors is an integer number (13429395).

Almost surely, 2^502474440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 502474440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859481280).

502474440 is an abundant number, since it is smaller than the sum of its proper divisors (1216488120).

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

502474440 is a wasteful number, since it uses less digits than its factorization.

502474440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18991 (or 18987 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 30.

The square root of 502474440 is about 22415.9416487463. The cubic root of 502474440 is about 795.0076815839.

The spelling of 502474440 in words is "five hundred two million, four hundred seventy-four thousand, four hundred forty".