40447806 has 16 divisors (see below), whose sum is σ = 92452224. Its totient is φ = 11556504.

The previous prime is 40447801. The next prime is 40447807. The reversal of 40447806 is 60874404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40447801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481480 + ... + 481563.

It is an arithmetic number, because the mean of its divisors is an integer number (5778264).

Almost surely, 2^40447806 is an apocalyptic number.

40447806 is an abundant number, since it is smaller than the sum of its proper divisors (52004418).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40447806 is a wasteful number, since it uses less digits than its factorization.

40447806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963055.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 40447806 is about 6359.8589607003. The cubic root of 40447806 is about 343.2666853591.

The spelling of 40447806 in words is "forty million, four hundred forty-seven thousand, eight hundred six".