2404407 has 4 divisors (see below), whose sum is σ = 3205880. Its totient is φ = 1602936.

The previous prime is 2404399. The next prime is 2404411. The reversal of 2404407 is 7044042.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2404407 - 2³ = 2404399 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400732 + ... + 400737.

It is an arithmetic number, because the mean of its divisors is an integer number (801470).

2^2404407 is an apocalyptic number.

2404407 is a deficient number, since it is larger than the sum of its proper divisors (801473).

2404407 is an equidigital number, since it uses as much as digits as its factorization.

2404407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801472.

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 2404407 is about 1550.6150392667. The cubic root of 2404407 is about 133.9684896578.

Adding to 2404407 its reverse (7044042), we get a palindrome (9448449).

The spelling of 2404407 in words is "two million, four hundred four thousand, four hundred seven".