404925953 has 8 divisors (see below), whose sum is σ = 409338600. Its totient is φ = 400526208.

The previous prime is 404925949. The next prime is 404925959. The reversal of 404925953 is 359529404.

It can be written as a sum of positive squares in 4 ways, for example, as 144168049 + 260757904 = 12007^2 + 16148^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404925953 - 2² = 404925949 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404925953.

It is not an unprimeable number, because it can be changed into a prime (404925959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68333 + ... + 74021.

It is an arithmetic number, because the mean of its divisors is an integer number (51167325).

Almost surely, 2^404925953 is an apocalyptic number.

It is an amenable number.

404925953 is a deficient number, since it is larger than the sum of its proper divisors (4412647).

404925953 is a wasteful number, since it uses less digits than its factorization.

404925953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6451.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 404925953 is about 20122.7720008949. The cubic root of 404925953 is about 739.8185292779.

The spelling of 404925953 in words is "four hundred four million, nine hundred twenty-five thousand, nine hundred fifty-three".