1404925 has 6 divisors (see below), whose sum is σ = 1742138. Its totient is φ = 1123920.

The previous prime is 1404919. The next prime is 1404937. The reversal of 1404925 is 5294041.

It can be written as a sum of positive squares in 3 ways, for example, as 14884 + 1390041 = 122^2 + 1179^2 .

It is not a de Polignac number, because 1404925 - 2⁷ = 1404797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 56197 = 1404925 / (1 + 4 + 0 + 4 + 9 + 2 + 5).

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1404925.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28074 + ... + 28123.

2^1404925 is an apocalyptic number.

It is an amenable number.

1404925 is a deficient number, since it is larger than the sum of its proper divisors (337213).

1404925 is an equidigital number, since it uses as much as digits as its factorization.

1404925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56207 (or 56202 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1404925 is about 1185.2953218502. The cubic root of 1404925 is about 111.9999202806. Note that the first 4 decimals are identical.

Adding to 1404925 its reverse (5294041), we get a palindrome (6698966).

The spelling of 1404925 in words is "one million, four hundred four thousand, nine hundred twenty-five".