404749925 has 24 divisors (see below), whose sum is σ = 510587112. Its totient is φ = 318240000.

The previous prime is 404749879. The next prime is 404749979. The reversal of 404749925 is 529947404.

It can be written as a sum of positive squares in 12 ways, for example, as 36954241 + 367795684 = 6079^2 + 19178^2 .

It is not a de Polignac number, because 404749925 - 2⁶ = 404749861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 395915 + ... + 396935.

It is an arithmetic number, because the mean of its divisors is an integer number (21274463).

Almost surely, 2^404749925 is an apocalyptic number.

It is an amenable number.

404749925 is a deficient number, since it is larger than the sum of its proper divisors (105837187).

404749925 is a wasteful number, since it uses less digits than its factorization.

404749925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1284 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 404749925 is about 20118.3976747653. The cubic root of 404749925 is about 739.7113099616.

The spelling of 404749925 in words is "four hundred four million, seven hundred forty-nine thousand, nine hundred twenty-five".