2404251 has 6 divisors (see below), whose sum is σ = 3472820. Its totient is φ = 1602828.

The previous prime is 2404247. The next prime is 2404253. The reversal of 2404251 is 1524042.

2404251 is a `hidden beast` number, since 240 + 425 + 1 = 666.

It is not a de Polignac number, because 2404251 - 2² = 2404247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2404253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133561 + ... + 133578.

2^2404251 is an apocalyptic number.

2404251 is a deficient number, since it is larger than the sum of its proper divisors (1068569).

2404251 is a wasteful number, since it uses less digits than its factorization.

2404251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267145 (or 267142 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2404251 is about 1550.5647358301. The cubic root of 2404251 is about 133.9655922647.

Adding to 2404251 its reverse (1524042), we get a palindrome (3928293).

The spelling of 2404251 in words is "two million, four hundred four thousand, two hundred fifty-one".