425431242 has 24 divisors (see below), whose sum is σ = 970282560. Its totient is φ = 134346600.

The previous prime is 425431229. The next prime is 425431243. The reversal of 425431242 is 242134524.

It is not an unprimeable number, because it can be changed into a prime (425431243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621634 + ... + 622317.

It is an arithmetic number, because the mean of its divisors is an integer number (40428440).

Almost surely, 2^425431242 is an apocalyptic number.

425431242 is an abundant number, since it is smaller than the sum of its proper divisors (544851318).

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

425431242 is a wasteful number, since it uses less digits than its factorization.

425431242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243978 (or 1243975 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 425431242 is about 20625.9846310425. The cubic root of 425431242 is about 752.1015087150.

Adding to 425431242 its reverse (242134524), we get a palindrome (667565766).

The spelling of 425431242 in words is "four hundred twenty-five million, four hundred thirty-one thousand, two hundred forty-two".