402130500 has 96 divisors (see below), whose sum is σ = 1177158528. Its totient is φ = 106672000.

The previous prime is 402130493. The next prime is 402130511. The reversal of 402130500 is 5031204.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 402130500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339910 + ... + 341090.

It is an arithmetic number, because the mean of its divisors is an integer number (12262068).

Almost surely, 2^402130500 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 402130500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588579264).

402130500 is an abundant number, since it is smaller than the sum of its proper divisors (775028028).

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

402130500 is a wasteful number, since it uses less digits than its factorization.

402130500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 402130500 is about 20053.1917659010. The cubic root of 402130500 is about 738.1121222704.

Adding to 402130500 its product of nonzero digits (120), we get a triangular number (402130620 = T₂₈₃₅₉).

Adding to 402130500 its reverse (5031204), we get a palindrome (407161704).

The spelling of 402130500 in words is "four hundred two million, one hundred thirty thousand, five hundred".