2400407 has 2 divisors, whose sum is σ = 2400408. Its totient is φ = 2400406.

The previous prime is 2400367. The next prime is 2400413. The reversal of 2400407 is 7040042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2400407 - 2¹² = 2396311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2400107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1200203 + 1200204.

It is an arithmetic number, because the mean of its divisors is an integer number (1200204).

2^2400407 is an apocalyptic number.

2400407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400407 is an equidigital number, since it uses as much as digits as its factorization.

2400407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 2400407 is about 1549.3246915995. The cubic root of 2400407 is about 133.8941579001.

Adding to 2400407 its reverse (7040042), we get a palindrome (9440449).

The spelling of 2400407 in words is "two million, four hundred thousand, four hundred seven".