426402 has 12 divisors (see below), whose sum is σ = 923910. Its totient is φ = 142128.

The previous prime is 426401. The next prime is 426407. The reversal of 426402 is 204624.

It can be written as a sum of positive squares in only one way, i.e., 423801 + 2601 = 651^2 + 51^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 23689 = 426402 / (4 + 2 + 6 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (426401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11827 + ... + 11862.

2⁴²⁶⁴⁰² is an apocalyptic number.

426402 is an abundant number, since it is smaller than the sum of its proper divisors (497508).

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

426402 is a wasteful number, since it uses less digits than its factorization.

426402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23697 (or 23694 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 426402 is about 652.9946401005. The cubic root of 426402 is about 75.2673127864.

It can be divided in two parts, 426 and 402, that added together give a palindrome (828).

The spelling of 426402 in words is "four hundred twenty-six thousand, four hundred two".