402333426 has 48 divisors (see below), whose sum is σ = 976540320. Its totient is φ = 121771080.

The previous prime is 402333401. The next prime is 402333427. The reversal of 402333426 is 624333204.

It is a happy number.

402333426 is a `hidden beast` number, since 4 + 0 + 233 + 3 + 426 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 402333426.

It is not an unprimeable number, because it can be changed into a prime (402333427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488451 + ... + 489273.

It is an arithmetic number, because the mean of its divisors is an integer number (20344590).

Almost surely, 2^402333426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402333426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488270160).

402333426 is an abundant number, since it is smaller than the sum of its proper divisors (574206894).

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

402333426 is an equidigital number, since it uses as much as digits as its factorization.

402333426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 402333426 is about 20058.2508210462. The cubic root of 402333426 is about 738.2362585503.

The spelling of 402333426 in words is "four hundred two million, three hundred thirty-three thousand, four hundred twenty-six".