40088866 has 16 divisors (see below), whose sum is σ = 61136640. Its totient is φ = 19712160.

The previous prime is 40088863. The next prime is 40088869. The reversal of 40088866 is 66888004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40088863) and next prime (40088869).

It is not an unprimeable number, because it can be changed into a prime (40088863) 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, 76686 + ... + 77206.

It is an arithmetic number, because the mean of its divisors is an integer number (3821040).

Almost surely, 2^40088866 is an apocalyptic number.

40088866 is a deficient number, since it is larger than the sum of its proper divisors (21047774).

40088866 is a wasteful number, since it uses less digits than its factorization.

40088866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 40088866 is about 6331.5768967928. The cubic root of 40088866 is about 342.2482665489.

The spelling of 40088866 in words is "forty million, eighty-eight thousand, eight hundred sixty-six".