40454847 has 12 divisors (see below), whose sum is σ = 59538024. Its totient is φ = 26460720.

The previous prime is 40454789. The next prime is 40454929. The reversal of 40454847 is 74845404.

It is not a de Polignac number, because 40454847 - 2⁷ = 40454719 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40454647) 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, 41929 + ... + 42882.

It is an arithmetic number, because the mean of its divisors is an integer number (4961502).

Almost surely, 2^40454847 is an apocalyptic number.

40454847 is a deficient number, since it is larger than the sum of its proper divisors (19083177).

40454847 is a wasteful number, since it uses less digits than its factorization.

40454847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84870 (or 84867 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 40454847 is about 6360.4124866238. The cubic root of 40454847 is about 343.2866023891.

The spelling of 40454847 in words is "forty million, four hundred fifty-four thousand, eight hundred forty-seven".