425849944 has 32 divisors (see below), whose sum is σ = 880871040. Its totient is φ = 191750400.

The previous prime is 425849933. The next prime is 425849951. The reversal of 425849944 is 449948524.

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent 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, 45672 + ... + 54199.

It is an arithmetic number, because the mean of its divisors is an integer number (27527220).

Almost surely, 2^425849944 is an apocalyptic number.

It is an amenable number.

425849944 is an abundant number, since it is smaller than the sum of its proper divisors (455021096).

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

425849944 is a wasteful number, since it uses less digits than its factorization.

425849944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99931 (or 99927 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 425849944 is about 20636.1320019038. The cubic root of 425849944 is about 752.3481628726.

The spelling of 425849944 in words is "four hundred twenty-five million, eight hundred forty-nine thousand, nine hundred forty-four".