40707399 has 4 divisors (see below), whose sum is σ = 54276536. Its totient is φ = 27138264.

The previous prime is 40707397. The next prime is 40707409. The reversal of 40707399 is 99370704.

40707399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40707399 - 2¹ = 40707397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40707397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6784564 + ... + 6784569.

It is an arithmetic number, because the mean of its divisors is an integer number (13569134).

Almost surely, 2^40707399 is an apocalyptic number.

40707399 is a deficient number, since it is larger than the sum of its proper divisors (13569137).

40707399 is a wasteful number, since it uses less digits than its factorization.

40707399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13569136.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 40707399 is about 6380.2350270190. The cubic root of 40707399 is about 343.9994788842. Note that the first 3 decimals are identical.

The spelling of 40707399 in words is "forty million, seven hundred seven thousand, three hundred ninety-nine".