40389322 has 4 divisors (see below), whose sum is σ = 60583986. Its totient is φ = 20194660.

The previous prime is 40389319. The next prime is 40389337. The reversal of 40389322 is 22398304.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 434281 = 6321^2 + 659^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10097329 + ... + 10097332.

Almost surely, 2^40389322 is an apocalyptic number.

40389322 is a deficient number, since it is larger than the sum of its proper divisors (20194664).

40389322 is a wasteful number, since it uses less digits than its factorization.

40389322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20194663.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 40389322 is about 6355.2593967516. The cubic root of 40389322 is about 343.1011609920.

The spelling of 40389322 in words is "forty million, three hundred eighty-nine thousand, three hundred twenty-two".