40404022 has 4 divisors (see below), whose sum is σ = 60606036. Its totient is φ = 20202010.

The previous prime is 40404017. The next prime is 40404043. The reversal of 40404022 is 22040404.

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

It is a junction number, because it is equal to n+sod(n) for n = 40403987 and 40404005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101004 + ... + 10101007.

It is an arithmetic number, because the mean of its divisors is an integer number (15151509).

Almost surely, 2^40404022 is an apocalyptic number.

40404022 is a deficient number, since it is larger than the sum of its proper divisors (20202014).

40404022 is a wasteful number, since it uses less digits than its factorization.

40404022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20202013.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 40404022 is about 6356.4158139631. The cubic root of 40404022 is about 343.1427806995.

Adding to 40404022 its reverse (22040404), we get a palindrome (62444426).

It can be divided in two parts, 4040402 and 2, that added together give a palindrome (4040404).

The spelling of 40404022 in words is "forty million, four hundred four thousand, twenty-two".