425431044 has 36 divisors (see below), whose sum is σ = 1112480460. Its totient is φ = 136920000.

The previous prime is 425431043. The next prime is 425431051. The reversal of 425431044 is 440134524.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 298598400 + 126832644 = 17280^2 + 11262^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 425430999 and 425431017.

It is not an unprimeable number, because it can be changed into a prime (425431043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202707 + ... + 204794.

It is an arithmetic number, because the mean of its divisors is an integer number (30902235).

Almost surely, 2^425431044 is an apocalyptic number.

It is an amenable number.

425431044 is an abundant number, since it is smaller than the sum of its proper divisors (687049416).

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

425431044 is a wasteful number, since it uses less digits than its factorization.

425431044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407540 (or 407535 counting only the distinct ones).

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

The square root of 425431044 is about 20625.9798312710. The cubic root of 425431044 is about 752.1013920364.

Adding to 425431044 its reverse (440134524), we get a palindrome (865565568).

The spelling of 425431044 in words is "four hundred twenty-five million, four hundred thirty-one thousand, forty-four".