40546566 has 12 divisors (see below), whose sum is σ = 87850932. Its totient is φ = 13515516.

The previous prime is 40546523. The next prime is 40546573. The reversal of 40546566 is 66564504.

It is a happy number.

40546566 is a `hidden beast` number, since 40 + 54 + 6 + 566 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40546566.

It is a congruent number.

It is an unprimeable number.

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, 1126276 + ... + 1126311.

It is an arithmetic number, because the mean of its divisors is an integer number (7320911).

Almost surely, 2^40546566 is an apocalyptic number.

40546566 is an abundant number, since it is smaller than the sum of its proper divisors (47304366).

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

40546566 is a wasteful number, since it uses less digits than its factorization.

40546566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252595 (or 2252592 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 40546566 is about 6367.6185501332. The cubic root of 40546566 is about 343.5458390547.

It can be divided in two parts, 405 and 46566, that added together give a triangular number (46971 = T₃₀₆).

The spelling of 40546566 in words is "forty million, five hundred forty-six thousand, five hundred sixty-six".