4039925 has 12 divisors (see below), whose sum is σ = 5105700. Its totient is φ = 3169920.

The previous prime is 4039901. The next prime is 4039949. The reversal of 4039925 is 5299304.

It is an interprime number because it is at equal distance from previous prime (4039901) and next prime (4039949).

It can be written as a sum of positive squares in 6 ways, for example, as 253009 + 3786916 = 503^2 + 1946^2 .

It is not a de Polignac number, because 4039925 - 2⁸ = 4039669 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4039891 and 4039900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200 + ... + 2849.

It is an arithmetic number, because the mean of its divisors is an integer number (425475).

Almost surely, 2^4039925 is an apocalyptic number.

It is an amenable number.

4039925 is a deficient number, since it is larger than the sum of its proper divisors (1065775).

4039925 is a wasteful number, since it uses less digits than its factorization.

4039925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3112 (or 3107 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 4039925 is about 2009.9564671903. The cubic root of 4039925 is about 159.2664992636.

The spelling of 4039925 in words is "four million, thirty-nine thousand, nine hundred twenty-five".