40340547 has 12 divisors (see below), whose sum is σ = 62752144. Its totient is φ = 24824880.

The previous prime is 40340543. The next prime is 40340549. The reversal of 40340547 is 74504304.

It is not a de Polignac number, because 40340547 - 2² = 40340543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40340547.

It is not an unprimeable number, because it can be changed into a prime (40340543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172279 + ... + 172512.

Almost surely, 2^40340547 is an apocalyptic number.

40340547 is a deficient number, since it is larger than the sum of its proper divisors (22411597).

40340547 is a wasteful number, since it uses less digits than its factorization.

40340547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344810 (or 344807 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 40340547 is about 6351.4208646570. The cubic root of 40340547 is about 342.9629932847.

The spelling of 40340547 in words is "forty million, three hundred forty thousand, five hundred forty-seven".