40363634 has 16 divisors (see below), whose sum is σ = 62038872. Its totient is φ = 19688448.

The previous prime is 40363613. The next prime is 40363663. The reversal of 40363634 is 43636304.

It can be written as a sum of positive squares in 4 ways, for example, as 28783225 + 11580409 = 5365^2 + 3403^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40363597 and 40363606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19472 + ... + 21444.

Almost surely, 2^40363634 is an apocalyptic number.

40363634 is a deficient number, since it is larger than the sum of its proper divisors (21675238).

40363634 is a wasteful number, since it uses less digits than its factorization.

40363634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221.

The product of its (nonzero) digits is 15552, while the sum is 29.

The square root of 40363634 is about 6353.2380720385. The cubic root of 40363634 is about 343.0284070119.

Adding to 40363634 its reverse (43636304), we get a palindrome (83999938).

The spelling of 40363634 in words is "forty million, three hundred sixty-three thousand, six hundred thirty-four".