40344634 has 16 divisors (see below), whose sum is σ = 66303360. Its totient is φ = 18259360.

The previous prime is 40344593. The next prime is 40344637. The reversal of 40344634 is 43644304.

It is not an unprimeable number, because it can be changed into a prime (40344637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422 + ... + 9094.

It is an arithmetic number, because the mean of its divisors is an integer number (4143960).

Almost surely, 2^40344634 is an apocalyptic number.

40344634 is a deficient number, since it is larger than the sum of its proper divisors (25958726).

40344634 is a wasteful number, since it uses less digits than its factorization.

40344634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7925.

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 40344634 is about 6351.7425955402. The cubic root of 40344634 is about 342.9745750349.

Adding to 40344634 its reverse (43644304), we get a palindrome (83988938).

It can be divided in two parts, 4034 and 4634, that added together give a palindrome (8668).

The spelling of 40344634 in words is "forty million, three hundred forty-four thousand, six hundred thirty-four".