1004099425 has 18 divisors (see below), whose sum is σ = 1448363958. Its totient is φ = 688524480.

The previous prime is 1004099413. The next prime is 1004099429. The reversal of 1004099425 is 5249904001.

It can be written as a sum of positive squares in 3 ways, for example, as 55890576 + 948208849 = 7476^2 + 30793^2 .

It is not a de Polignac number, because 1004099425 - 2⁷ = 1004099297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004099429) 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, 408612 + ... + 411061.

Almost surely, 2^1004099425 is an apocalyptic number.

It is an amenable number.

1004099425 is a deficient number, since it is larger than the sum of its proper divisors (444264533).

1004099425 is an equidigital number, since it uses as much as digits as its factorization.

1004099425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819697 (or 819685 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 1004099425 is about 31687.5279092579. The cubic root of 1004099425 is about 1001.3646119871.

The spelling of 1004099425 in words is "one billion, four million, ninety-nine thousand, four hundred twenty-five".