40200666 has 16 divisors (see below), whose sum is σ = 87710688. Its totient is φ = 12182000.

The previous prime is 40200581. The next prime is 40200673. The reversal of 40200666 is 66600204.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304485 + ... + 304616.

It is an arithmetic number, because the mean of its divisors is an integer number (5481918).

Almost surely, 2^40200666 is an apocalyptic number.

40200666 is an abundant number, since it is smaller than the sum of its proper divisors (47510022).

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

40200666 is a wasteful number, since it uses less digits than its factorization.

40200666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609117.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 40200666 is about 6340.3995142262. The cubic root of 40200666 is about 342.5661257232.

The spelling of 40200666 in words is "forty million, two hundred thousand, six hundred sixty-six".