502423240 has 32 divisors (see below), whose sum is σ = 1233221760. Its totient is φ = 182699200.

The previous prime is 502423217. The next prime is 502423241. The reversal of 502423240 is 42324205.

It is a super-2 number, since 2×502423240² = 504858224184195200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (502423241) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 570496 + ... + 571375.

It is an arithmetic number, because the mean of its divisors is an integer number (38538180).

Almost surely, 2^502423240 is an apocalyptic number.

It is an amenable number.

502423240 is an abundant number, since it is smaller than the sum of its proper divisors (730798520).

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

502423240 is a wasteful number, since it uses less digits than its factorization.

502423240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141893 (or 1141889 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 502423240 is about 22414.7995752806. The cubic root of 502423240 is about 794.9806780373.

Adding to 502423240 its reverse (42324205), we get a palindrome (544747445).

The spelling of 502423240 in words is "five hundred two million, four hundred twenty-three thousand, two hundred forty".