512004402 has 224 divisors, whose sum is σ = 1507185792. Its totient is φ = 126531072.

The previous prime is 512004391. The next prime is 512004413. The reversal of 512004402 is 204400215.

It is an interprime number because it is at equal distance from previous prime (512004391) and next prime (512004413).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2255413 + ... + 2255639.

It is an arithmetic number, because the mean of its divisors is an integer number (6728508).

Almost surely, 2^512004402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512004402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (753592896).

512004402 is an abundant number, since it is smaller than the sum of its proper divisors (995181390).

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

512004402 is a wasteful number, since it uses less digits than its factorization.

512004402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 512004402 is about 22627.5142691370. The cubic root of 512004402 is about 800.0022927018.

Adding to 512004402 its reverse (204400215), we get a palindrome (716404617).

The spelling of 512004402 in words is "five hundred twelve million, four thousand, four hundred two".