402421303124204 has 144 divisors (see below), whose sum is σ = 893851127769600. Its totient is φ = 157104869410944.

The previous prime is 402421303124179. The next prime is 402421303124209.

It is a happy number.

402421303124204 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (402421303124209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 397851767 + ... + 398861969.

It is an arithmetic number, because the mean of its divisors is an integer number (6207299498400).

Almost surely, 2^{402421303124204} 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 402421303124204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446925563884800).

402421303124204 is an abundant number, since it is smaller than the sum of its proper divisors (491429824645396).

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

402421303124204 is a wasteful number, since it uses less digits than its factorization.

402421303124204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012292 (or 1012283 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

It can be divided in two parts, 40242130 and 3124204, that added together give a palindrome (43366334).

The spelling of 402421303124204 in words is "four hundred two trillion, four hundred twenty-one billion, three hundred three million, one hundred twenty-four thousand, two hundred four".