40566998 has 16 divisors (see below), whose sum is σ = 66653280. Its totient is φ = 18431616.

The previous prime is 40566973. The next prime is 40567019. The reversal of 40566998 is 89966504.

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 7 ways as a sum of consecutive naturals, for example, 19586 + ... + 21557.

It is an arithmetic number, because the mean of its divisors is an integer number (4165830).

Almost surely, 2^40566998 is an apocalyptic number.

40566998 is a deficient number, since it is larger than the sum of its proper divisors (26086282).

40566998 is a wasteful number, since it uses less digits than its factorization.

40566998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41191.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 40566998 is about 6369.2227155282. Note that the first 3 decimals coincide. The cubic root of 40566998 is about 343.6035352672.

The spelling of 40566998 in words is "forty million, five hundred sixty-six thousand, nine hundred ninety-eight".