40442022 has 48 divisors (see below), whose sum is σ = 90164880. Its totient is φ = 13095936.

The previous prime is 40442009. The next prime is 40442057. The reversal of 40442022 is 22024404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 40441986 and 40442004.

It is a congruent 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 in 23 ways as a sum of consecutive naturals, for example, 119838 + ... + 120174.

It is an arithmetic number, because the mean of its divisors is an integer number (1878435).

Almost surely, 2^40442022 is an apocalyptic number.

40442022 is an abundant number, since it is smaller than the sum of its proper divisors (49722858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40442022 is a wasteful number, since it uses less digits than its factorization.

40442022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 514 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 40442022 is about 6359.4042173776. The cubic root of 40442022 is about 343.2503223030.

Adding to 40442022 its reverse (22024404), we get a palindrome (62466426).

The spelling of 40442022 in words is "forty million, four hundred forty-two thousand, twenty-two".