425600394 has 16 divisors (see below), whose sum is σ = 865628640. Its totient is φ = 139462160.

The previous prime is 425600387. The next prime is 425600407. The reversal of 425600394 is 493006524.

It is a super-2 number, since 2×425600394² = 362271390745910472, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600777 + ... + 601484.

It is an arithmetic number, because the mean of its divisors is an integer number (54101790).

Almost surely, 2^425600394 is an apocalyptic number.

425600394 is an abundant number, since it is smaller than the sum of its proper divisors (440028246).

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

425600394 is a wasteful number, since it uses less digits than its factorization.

425600394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202325.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 425600394 is about 20630.0846823274. The cubic root of 425600394 is about 752.2011743442.

The spelling of 425600394 in words is "four hundred twenty-five million, six hundred thousand, three hundred ninety-four".