40343630 has 16 divisors (see below), whose sum is σ = 72990720. Its totient is φ = 16054752.

The previous prime is 40343629. The next prime is 40343657. The reversal of 40343630 is 3634304.

40343630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40343596 and 40343605.

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, 8270 + ... + 12209.

It is an arithmetic number, because the mean of its divisors is an integer number (4561920).

Almost surely, 2^40343630 is an apocalyptic number.

40343630 is a deficient number, since it is larger than the sum of its proper divisors (32647090).

40343630 is a wasteful number, since it uses less digits than its factorization.

40343630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20683.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 40343630 is about 6351.6635616191. The cubic root of 40343630 is about 342.9717299698.

Adding to 40343630 its reverse (3634304), we get a palindrome (43977934).

The spelling of 40343630 in words is "forty million, three hundred forty-three thousand, six hundred thirty".