40480394 has 4 divisors (see below), whose sum is σ = 60720594. Its totient is φ = 20240196.

The previous prime is 40480379. The next prime is 40480403. The reversal of 40480394 is 49308404.

40480394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 33120025 + 7360369 = 5755^2 + 2713^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40480394.

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 as a sum of consecutive naturals, namely, 10120097 + ... + 10120100.

Almost surely, 2^40480394 is an apocalyptic number.

40480394 is a deficient number, since it is larger than the sum of its proper divisors (20240200).

40480394 is a wasteful number, since it uses less digits than its factorization.

40480394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20240199.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 40480394 is about 6362.4204513691. The cubic root of 40480394 is about 343.3588483462.

Adding to 40480394 its reverse (49308404), we get a palindrome (89788798).

The spelling of 40480394 in words is "forty million, four hundred eighty thousand, three hundred ninety-four".