502216440 has 128 divisors (see below), whose sum is σ = 1660331520. Its totient is φ = 120512000.

The previous prime is 502216427. The next prime is 502216453. The reversal of 502216440 is 44612205.

It is an interprime number because it is at equal distance from previous prime (502216427) and next prime (502216453).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 502216440.

It is a congruent number.

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, 131437 + ... + 135203.

It is an arithmetic number, because the mean of its divisors is an integer number (12971340).

Almost surely, 2^502216440 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 502216440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830165760).

502216440 is an abundant number, since it is smaller than the sum of its proper divisors (1158115080).

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

502216440 is a wasteful number, since it uses less digits than its factorization.

502216440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893 (or 3889 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 502216440 is about 22410.1860768714. The cubic root of 502216440 is about 794.8715903515.

Adding to 502216440 its reverse (44612205), we get a palindrome (546828645).

The spelling of 502216440 in words is "five hundred two million, two hundred sixteen thousand, four hundred forty".