426090840318 has 128 divisors (see below), whose sum is σ = 1112833935360. Its totient is φ = 119140295040.

The previous prime is 426090840299. The next prime is 426090840337. The reversal of 426090840318 is 813048090624.

It is a happy number.

426090840318 is a `hidden beast` number, since 4 + 2 + 609 + 0 + 8 + 4 + 0 + 31 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (426090840299) and next prime (426090840337).

It is a super-2 number, since 2×426090840318² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23334480 + ... + 23352732.

It is an arithmetic number, because the mean of its divisors is an integer number (8694015120).

Almost surely, 2^426090840318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426090840318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (556416967680).

426090840318 is an abundant number, since it is smaller than the sum of its proper divisors (686743095042).

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

426090840318 is a wasteful number, since it uses less digits than its factorization.

426090840318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21311 (or 21305 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 426090840318 in words is "four hundred twenty-six billion, ninety million, eight hundred forty thousand, three hundred eighteen".