425665244 has 12 divisors (see below), whose sum is σ = 788732784. Its totient is φ = 200313024.

The previous prime is 425665231. The next prime is 425665249. The reversal of 425665244 is 442566524.

It is a junction number, because it is equal to n+sod(n) for n = 425665198 and 425665207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425665249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3129824 + ... + 3129959.

It is an arithmetic number, because the mean of its divisors is an integer number (65727732).

Almost surely, 2^425665244 is an apocalyptic number.

It is an amenable number.

425665244 is a deficient number, since it is larger than the sum of its proper divisors (363067540).

425665244 is a wasteful number, since it uses less digits than its factorization.

425665244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6259804 (or 6259802 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The square root of 425665244 is about 20631.6563561921. The cubic root of 425665244 is about 752.2393774485.

The spelling of 425665244 in words is "four hundred twenty-five million, six hundred sixty-five thousand, two hundred forty-four".