4039425 has 36 divisors (see below), whose sum is σ = 7797244. Its totient is φ = 1987200.

The previous prime is 4039397. The next prime is 4039429. The reversal of 4039425 is 5249304.

It can be written as a sum of positive squares in 6 ways, for example, as 501264 + 3538161 = 708^2 + 1881^2 .

It is not a de Polignac number, because 4039425 - 2⁸ = 4039169 is a prime.

It is a super-3 number, since 3×4039425³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4039429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2235 + ... + 3615.

Almost surely, 2^4039425 is an apocalyptic number.

4039425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4039425 is a deficient number, since it is larger than the sum of its proper divisors (3757819).

4039425 is a wasteful number, since it uses less digits than its factorization.

4039425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1402 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 4039425 is about 2009.8320825382. The cubic root of 4039425 is about 159.2599284704.

The spelling of 4039425 in words is "four million, thirty-nine thousand, four hundred twenty-five".