40455407 has 2 divisors, whose sum is σ = 40455408. Its totient is φ = 40455406.

The previous prime is 40455361. The next prime is 40455419. The reversal of 40455407 is 70455404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40455407 - 2⁶ = 40455343 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40455407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40455487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20227703 + 20227704.

It is an arithmetic number, because the mean of its divisors is an integer number (20227704).

Almost surely, 2^40455407 is an apocalyptic number.

40455407 is a deficient number, since it is larger than the sum of its proper divisors (1).

40455407 is an equidigital number, since it uses as much as digits as its factorization.

40455407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 40455407 is about 6360.4565087736. The cubic root of 40455407 is about 343.2881863741.

The spelling of 40455407 in words is "forty million, four hundred fifty-five thousand, four hundred seven".