40343384 has 16 divisors (see below), whose sum is σ = 79625400. Its totient is φ = 19109952.

The previous prime is 40343383. The next prime is 40343393. The reversal of 40343384 is 48334304.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40343383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132557 + ... + 132860.

Almost surely, 2^40343384 is an apocalyptic number.

It is an amenable number.

40343384 is a deficient number, since it is larger than the sum of its proper divisors (39282016).

40343384 is a wasteful number, since it uses less digits than its factorization.

40343384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265442 (or 265438 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 40343384 is about 6351.6441965841. The cubic root of 40343384 is about 342.9710328650.

Adding to 40343384 its reverse (48334304), we get a palindrome (88677688).

The spelling of 40343384 in words is "forty million, three hundred forty-three thousand, three hundred eighty-four".