40740447 has 16 divisors (see below), whose sum is σ = 61303680. Its totient is φ = 23839200.

The previous prime is 40740443. The next prime is 40740451. The reversal of 40740447 is 74404704.

It is an interprime number because it is at equal distance from previous prime (40740443) and next prime (40740451).

It is not a de Polignac number, because 40740447 - 2² = 40740443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40740443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20329 + ... + 22242.

It is an arithmetic number, because the mean of its divisors is an integer number (3831480).

Almost surely, 2^40740447 is an apocalyptic number.

40740447 is a deficient number, since it is larger than the sum of its proper divisors (20563233).

40740447 is a wasteful number, since it uses less digits than its factorization.

40740447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42614.

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 40740447 is about 6382.8243748360. The cubic root of 40740447 is about 344.0925448457.

The spelling of 40740447 in words is "forty million, seven hundred forty thousand, four hundred forty-seven".