40452547 has 6 divisors (see below), whose sum is σ = 40920188. Its totient is φ = 39990192.

The previous prime is 40452541. The next prime is 40452563. The reversal of 40452547 is 74525404.

It is not a de Polignac number, because 40452547 - 2¹¹ = 40450499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40452541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5368 + ... + 10474.

Almost surely, 2^40452547 is an apocalyptic number.

40452547 is a deficient number, since it is larger than the sum of its proper divisors (467641).

40452547 is an frugal number, since it uses more digits than its factorization.

40452547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285 (or 5196 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 40452547 is about 6360.2316781702. The cubic root of 40452547 is about 343.2800965832.

The spelling of 40452547 in words is "forty million, four hundred fifty-two thousand, five hundred forty-seven".