40704407 has 2 divisors, whose sum is σ = 40704408. Its totient is φ = 40704406.

The previous prime is 40704383. The next prime is 40704437. The reversal of 40704407 is 70440704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40704407 - 2⁸ = 40704151 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40704437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20352203 + 20352204.

It is an arithmetic number, because the mean of its divisors is an integer number (20352204).

Almost surely, 2^40704407 is an apocalyptic number.

40704407 is a deficient number, since it is larger than the sum of its proper divisors (1).

40704407 is an equidigital number, since it uses as much as digits as its factorization.

40704407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 40704407 is about 6380.0005485893. Note that the first 3 decimals coincide. The cubic root of 40704407 is about 343.9910506731.

The spelling of 40704407 in words is "forty million, seven hundred four thousand, four hundred seven".