40304424 has 16 divisors (see below), whose sum is σ = 100761120. Its totient is φ = 13434800.

The previous prime is 40304423. The next prime is 40304443. The reversal of 40304424 is 42440304.

It is a self number, because there is not a number n which added to its sum of digits gives 40304424.

It is not an unprimeable number, because it can be changed into a prime (40304423) 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, 839652 + ... + 839699.

It is an arithmetic number, because the mean of its divisors is an integer number (6297570).

Almost surely, 2^40304424 is an apocalyptic number.

It is an amenable number.

40304424 is an abundant number, since it is smaller than the sum of its proper divisors (60456696).

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

40304424 is a wasteful number, since it uses less digits than its factorization.

40304424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679360 (or 1679356 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 40304424 is about 6348.5765333656. The cubic root of 40304424 is about 342.8605938145.

Adding to 40304424 its reverse (42440304), we get a palindrome (82744728).

The spelling of 40304424 in words is "forty million, three hundred four thousand, four hundred twenty-four".