425731194 has 128 divisors (see below), whose sum is σ = 1136332800. Its totient is φ = 115577280.

The previous prime is 425731193. The next prime is 425731211. The reversal of 425731194 is 491137524.

425731194 is a `hidden beast` number, since 4 + 257 + 311 + 94 = 666.

It is not an unprimeable number, because it can be changed into a prime (425731193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 778029 + ... + 778575.

It is an arithmetic number, because the mean of its divisors is an integer number (8877600).

Almost surely, 2^425731194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425731194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568166400).

425731194 is an abundant number, since it is smaller than the sum of its proper divisors (710601606).

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

425731194 is a wasteful number, since it uses less digits than its factorization.

425731194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 659 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 425731194 is about 20633.2545663548. The cubic root of 425731194 is about 752.2782245831.

It can be divided in two parts, 42 and 5731194, that added together give a square (5731236 = 2394²).

The spelling of 425731194 in words is "four hundred twenty-five million, seven hundred thirty-one thousand, one hundred ninety-four".