426145434 has 64 divisors (see below), whose sum is σ = 1014128640. Its totient is φ = 117673920.

The previous prime is 426145429. The next prime is 426145441. The reversal of 426145434 is 434541624.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 426145395 and 426145404.

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, 64639 + ... + 70925.

It is an arithmetic number, because the mean of its divisors is an integer number (15845760).

Almost surely, 2^426145434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426145434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (507064320).

426145434 is an abundant number, since it is smaller than the sum of its proper divisors (587983206).

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

426145434 is a wasteful number, since it uses less digits than its factorization.

426145434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395.

The product of its digits is 46080, while the sum is 33.

The square root of 426145434 is about 20643.2902900676. The cubic root of 426145434 is about 752.5221364849.

The spelling of 426145434 in words is "four hundred twenty-six million, one hundred forty-five thousand, four hundred thirty-four".