40353944 has 16 divisors (see below), whose sum is σ = 76414320. Its totient is φ = 19976800.

The previous prime is 40353923. The next prime is 40353947. The reversal of 40353944 is 44935304.

It is a self number, because there is not a number n which added to its sum of digits gives 40353944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40353947) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 24164 + ... + 25779.

It is an arithmetic number, because the mean of its divisors is an integer number (4775895).

Almost surely, 2^40353944 is an apocalyptic number.

It is an amenable number.

40353944 is a deficient number, since it is larger than the sum of its proper divisors (36060376).

40353944 is a wasteful number, since it uses less digits than its factorization.

40353944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50050 (or 50046 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 40353944 is about 6352.4754230142. The cubic root of 40353944 is about 343.0009548149. Note that the first 3 decimals are identical.

The spelling of 40353944 in words is "forty million, three hundred fifty-three thousand, nine hundred forty-four".