425644094 has 4 divisors (see below), whose sum is σ = 638466144. Its totient is φ = 212822046.

The previous prime is 425644081. The next prime is 425644097. The reversal of 425644094 is 490446524.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425644097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106411022 + ... + 106411025.

It is an arithmetic number, because the mean of its divisors is an integer number (159616536).

Almost surely, 2^425644094 is an apocalyptic number.

425644094 is a deficient number, since it is larger than the sum of its proper divisors (212822050).

425644094 is a wasteful number, since it uses less digits than its factorization.

425644094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212822049.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 425644094 is about 20631.1437879726. The cubic root of 425644094 is about 752.2269184199.

The spelling of 425644094 in words is "four hundred twenty-five million, six hundred forty-four thousand, ninety-four".