40620907 has 2 divisors, whose sum is σ = 40620908. Its totient is φ = 40620906.

The previous prime is 40620893. The next prime is 40620929. The reversal of 40620907 is 70902604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40620907 - 2⁷ = 40620779 is a prime.

It is not a weakly prime, because it can be changed into another prime (40620997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20310453 + 20310454.

It is an arithmetic number, because the mean of its divisors is an integer number (20310454).

Almost surely, 2^40620907 is an apocalyptic number.

40620907 is a deficient number, since it is larger than the sum of its proper divisors (1).

40620907 is an equidigital number, since it uses as much as digits as its factorization.

40620907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 40620907 is about 6373.4533025668. The cubic root of 40620907 is about 343.7556714436.

The spelling of 40620907 in words is "forty million, six hundred twenty thousand, nine hundred seven".