40036866 has 16 divisors (see below), whose sum is σ = 80154144. Its totient is φ = 13332224.

The previous prime is 40036861. The next prime is 40036873. The reversal of 40036866 is 66863004.

It is not an unprimeable number, because it can be changed into a prime (40036861) 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, 4561 + ... + 10043.

It is an arithmetic number, because the mean of its divisors is an integer number (5009634).

Almost surely, 2^40036866 is an apocalyptic number.

40036866 is an abundant number, since it is smaller than the sum of its proper divisors (40117278).

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

40036866 is a wasteful number, since it uses less digits than its factorization.

40036866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6705.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 40036866 is about 6327.4691623113. The cubic root of 40036866 is about 342.1002236957.

The spelling of 40036866 in words is "forty million, thirty-six thousand, eight hundred sixty-six".