431242425 has 18 divisors (see below), whose sum is σ = 772403502. Its totient is φ = 229995840.

The previous prime is 431242423. The next prime is 431242429. The reversal of 431242425 is 524242134.

It can be written as a sum of positive squares in 3 ways, for example, as 389376 + 430853049 = 624^2 + 20757^2 .

It is not a de Polignac number, because 431242425 - 2¹ = 431242423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (431242423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 958092 + ... + 958541.

Almost surely, 2^431242425 is an apocalyptic number.

431242425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

431242425 is a deficient number, since it is larger than the sum of its proper divisors (341161077).

431242425 is a wasteful number, since it uses less digits than its factorization.

431242425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916649 (or 1916641 counting only the distinct ones).

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

The square root of 431242425 is about 20766.3772719268. The cubic root of 431242425 is about 755.5104803183.

Adding to 431242425 its reverse (524242134), we get a palindrome (955484559).

The spelling of 431242425 in words is "four hundred thirty-one million, two hundred forty-two thousand, four hundred twenty-five".