40430684 has 18 divisors (see below), whose sum is σ = 82305720. Its totient is φ = 17327352.

The previous prime is 40430671. The next prime is 40430701. The reversal of 40430684 is 48603404.

40430684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102944 + ... + 103335.

It is an arithmetic number, because the mean of its divisors is an integer number (4572540).

Almost surely, 2^40430684 is an apocalyptic number.

It is an amenable number.

40430684 is an abundant number, since it is smaller than the sum of its proper divisors (41875036).

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

40430684 is a wasteful number, since it uses less digits than its factorization.

40430684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206297 (or 206288 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 40430684 is about 6358.5127191821. The cubic root of 40430684 is about 343.2182423384.

It can be divided in two parts, 40430 and 684, that added together give a palindrome (41114).

The spelling of 40430684 in words is "forty million, four hundred thirty thousand, six hundred eighty-four".