402420403134324 has 288 divisors, whose sum is σ = 1106572450838400. Its totient is φ = 122888435281920.

The previous prime is 402420403134319. The next prime is 402420403134331. The reversal of 402420403134324 is 423431304024204.

402420403134324 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 204 + 0 + 3 + 13 + 432 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2405053914 + ... + 2405221230.

It is an arithmetic number, because the mean of its divisors is an integer number (3842265454300).

Almost surely, 2^{402420403134324} 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 402420403134324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553286225419200).

402420403134324 is an abundant number, since it is smaller than the sum of its proper divisors (704152047704076).

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

402420403134324 is a wasteful number, since it uses less digits than its factorization.

402420403134324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168143 (or 168138 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 402420403134324 its reverse (423431304024204), we get a palindrome (825851707158528).

The spelling of 402420403134324 in words is "four hundred two trillion, four hundred twenty billion, four hundred three million, one hundred thirty-four thousand, three hundred twenty-four".