40394346 has 32 divisors (see below), whose sum is σ = 85950720. Its totient is φ = 12612096.

The previous prime is 40394339. The next prime is 40394377. The reversal of 40394346 is 64349304.

40394346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 23550 + ... + 25206.

It is an arithmetic number, because the mean of its divisors is an integer number (2685960).

Almost surely, 2^40394346 is an apocalyptic number.

40394346 is an abundant number, since it is smaller than the sum of its proper divisors (45556374).

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

40394346 is a wasteful number, since it uses less digits than its factorization.

40394346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 40394346 is about 6355.6546476347. The cubic root of 40394346 is about 343.1153864414.

It can be divided in two parts, 4039 and 4346, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 40394346 in words is "forty million, three hundred ninety-four thousand, three hundred forty-six".