40402245 has 16 divisors (see below), whose sum is σ = 69616512. Its totient is φ = 19890240.

The previous prime is 40402177. The next prime is 40402253. The reversal of 40402245 is 54220404.

40402245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40402245 - 2⁸ = 40401989 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 103401 + ... + 103790.

It is an arithmetic number, because the mean of its divisors is an integer number (4351032).

Almost surely, 2^40402245 is an apocalyptic number.

It is an amenable number.

40402245 is a deficient number, since it is larger than the sum of its proper divisors (29214267).

40402245 is a wasteful number, since it uses less digits than its factorization.

40402245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207212.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 40402245 is about 6356.2760323951. The cubic root of 40402245 is about 343.1377500645.

Adding to 40402245 its reverse (54220404), we get a palindrome (94622649).

The spelling of 40402245 in words is "forty million, four hundred two thousand, two hundred forty-five".