40448907 has 12 divisors (see below), whose sum is σ = 58636344. Its totient is φ = 26868960.

The previous prime is 40448897. The next prime is 40448909. The reversal of 40448907 is 70984404.

40448907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40448907 - 2¹⁵ = 40416139 is a prime.

It is a super-2 number, since 2×40448907² = 3272228154989298, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40448909) 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 11 ways as a sum of consecutive naturals, for example, 5394 + ... + 10487.

It is an arithmetic number, because the mean of its divisors is an integer number (4886362).

Almost surely, 2^40448907 is an apocalyptic number.

40448907 is a deficient number, since it is larger than the sum of its proper divisors (18187437).

40448907 is a wasteful number, since it uses less digits than its factorization.

40448907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16170 (or 16167 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40448907 is about 6359.9455186346. The cubic root of 40448907 is about 343.2697999342.

The spelling of 40448907 in words is "forty million, four hundred forty-eight thousand, nine hundred seven".