40633686 has 48 divisors (see below), whose sum is σ = 93431520. Its totient is φ = 12735360.

The previous prime is 40633679. The next prime is 40633699. The reversal of 40633686 is 68633604.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40633686.

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 23 ways as a sum of consecutive naturals, for example, 24450 + ... + 26058.

It is an arithmetic number, because the mean of its divisors is an integer number (1946490).

Almost surely, 2^40633686 is an apocalyptic number.

40633686 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 40633686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46715760).

40633686 is an abundant number, since it is smaller than the sum of its proper divisors (52797834).

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

40633686 is a wasteful number, since it uses less digits than its factorization.

40633686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701 (or 1698 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 40633686 is about 6374.4557414731. The cubic root of 40633686 is about 343.7917152240.

The spelling of 40633686 in words is "forty million, six hundred thirty-three thousand, six hundred eighty-six".