40402022 has 8 divisors (see below), whose sum is σ = 61370400. Its totient is φ = 19945224.

The previous prime is 40402009. The next prime is 40402027. The reversal of 40402022 is 22020404.

It is a happy number.

40402022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 40401988 and 40402006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40402027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 127697 + ... + 128012.

It is an arithmetic number, because the mean of its divisors is an integer number (7671300).

Almost surely, 2^40402022 is an apocalyptic number.

40402022 is a deficient number, since it is larger than the sum of its proper divisors (20968378).

40402022 is a wasteful number, since it uses less digits than its factorization.

40402022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255790.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 40402022 is about 6356.2584906531. The cubic root of 40402022 is about 343.1371187476.

Adding to 40402022 its reverse (22020404), we get a palindrome (62422426).

The spelling of 40402022 in words is "forty million, four hundred two thousand, twenty-two".