425607858 has 80 divisors (see below), whose sum is σ = 1044188376. Its totient is φ = 128770560.

The previous prime is 425607841. The next prime is 425607859. The reversal of 425607858 is 858706524.

425607858 is a `hidden beast` number, since 4 + 2 + 560 + 7 + 85 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 275128569 + 150479289 = 16587^2 + 12267^2 .

It is a super-2 number, since 2×425607858² = 362284097582696328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (425607859) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 126810 + ... + 130122.

Almost surely, 2^425607858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425607858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522094188).

425607858 is an abundant number, since it is smaller than the sum of its proper divisors (618580518).

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

425607858 is a wasteful number, since it uses less digits than its factorization.

425607858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401 (or 3392 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 425607858 is about 20630.2655823913. The cubic root of 425607858 is about 752.2055715807.

The spelling of 425607858 in words is "four hundred twenty-five million, six hundred seven thousand, eight hundred fifty-eight".