426401346 has 64 divisors (see below), whose sum is σ = 998150400. Its totient is φ = 118920960.

The previous prime is 426401329. The next prime is 426401369. The reversal of 426401346 is 643104624.

It is a super-2 number, since 2×426401346² = 363636215741223432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381180 + ... + 382296.

It is an arithmetic number, because the mean of its divisors is an integer number (15596100).

Almost surely, 2^426401346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426401346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499075200).

426401346 is an abundant number, since it is smaller than the sum of its proper divisors (571749054).

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

426401346 is a wasteful number, since it uses less digits than its factorization.

426401346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339.

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 426401346 is about 20649.4877902577. The cubic root of 426401346 is about 752.6727430562.

The spelling of 426401346 in words is "four hundred twenty-six million, four hundred one thousand, three hundred forty-six".