425042439 has 16 divisors (see below), whose sum is σ = 576102528. Its totient is φ = 278685792.

The previous prime is 425042437. The next prime is 425042459. The reversal of 425042439 is 934240524.

It is not a de Polignac number, because 425042439 - 2¹ = 425042437 is a prime.

It is a super-2 number, since 2×425042439² = 361322149902137442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425042437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164949 + ... + 167505.

It is an arithmetic number, because the mean of its divisors is an integer number (36006408).

Almost surely, 2^425042439 is an apocalyptic number.

425042439 is a deficient number, since it is larger than the sum of its proper divisors (151060089).

425042439 is a wasteful number, since it uses less digits than its factorization.

425042439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3454.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 425042439 is about 20616.5573993332. The cubic root of 425042439 is about 751.8723228754.

The spelling of 425042439 in words is "four hundred twenty-five million, forty-two thousand, four hundred thirty-nine".