40520806 has 12 divisors (see below), whose sum is σ = 64149732. Its totient is φ = 19193724.

The previous prime is 40520791. The next prime is 40520839. The reversal of 40520806 is 60802504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27340 + ... + 28783.

It is an arithmetic number, because the mean of its divisors is an integer number (5345811).

Almost surely, 2^40520806 is an apocalyptic number.

40520806 is a deficient number, since it is larger than the sum of its proper divisors (23628926).

40520806 is a wasteful number, since it uses less digits than its factorization.

40520806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56163 (or 56144 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 40520806 is about 6365.5954945315. The cubic root of 40520806 is about 343.4730699196.

The spelling of 40520806 in words is "forty million, five hundred twenty thousand, eight hundred six".