402234424344 has 128 divisors (see below), whose sum is σ = 1136678400000. Its totient is φ = 131756575104.

The previous prime is 402234424303. The next prime is 402234424349. The reversal of 402234424344 is 443424432204.

402234424344 is a `hidden beast` number, since 4 + 0 + 223 + 4 + 424 + 3 + 4 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 402234424299 and 402234424308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402234424349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52998502 + ... + 53006090.

It is an arithmetic number, because the mean of its divisors is an integer number (8880300000).

Almost surely, 2^402234424344 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 402234424344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568339200000).

402234424344 is an abundant number, since it is smaller than the sum of its proper divisors (734443975656).

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

402234424344 is a wasteful number, since it uses less digits than its factorization.

402234424344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11822 (or 11812 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 36.

Adding to 402234424344 its reverse (443424432204), we get a palindrome (845658856548).

The spelling of 402234424344 in words is "four hundred two billion, two hundred thirty-four million, four hundred twenty-four thousand, three hundred forty-four".