40694406 has 16 divisors (see below), whose sum is σ = 84927744. Its totient is φ = 12974984.

The previous prime is 40694389. The next prime is 40694419. The reversal of 40694406 is 60449604.

40694406 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 7 ways as a sum of consecutive naturals, for example, 147306 + ... + 147581.

It is an arithmetic number, because the mean of its divisors is an integer number (5307984).

Almost surely, 2^40694406 is an apocalyptic number.

40694406 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40694406 is an abundant number, since it is smaller than the sum of its proper divisors (44233338).

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

40694406 is a wasteful number, since it uses less digits than its factorization.

40694406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294915.

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

The square root of 40694406 is about 6379.2167230782. The cubic root of 40694406 is about 343.9628757035.

The spelling of 40694406 in words is "forty million, six hundred ninety-four thousand, four hundred six".