22042031 has 8 divisors (see below), whose sum is σ = 24084864. Its totient is φ = 20005720.

The previous prime is 22042019. The next prime is 22042037. The reversal of 22042031 is 13024022.

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

It is a cyclic number.

It is not a de Polignac number, because 22042031 - 2⁶ = 22041967 is a prime.

It is a super-2 number, since 2×22042031² = 971702261209922, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 22041997 and 22042015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22042037) 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 7 ways as a sum of consecutive naturals, for example, 7886 + ... + 10308.

It is an arithmetic number, because the mean of its divisors is an integer number (3010608).

Almost surely, 2^22042031 is an apocalyptic number.

22042031 is a deficient number, since it is larger than the sum of its proper divisors (2042833).

22042031 is a wasteful number, since it uses less digits than its factorization.

22042031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22042031 is about 4694.8941415116. The cubic root of 22042031 is about 280.3822627521.

Adding to 22042031 its reverse (13024022), we get a palindrome (35066053).

Subtracting from 22042031 its reverse (13024022), we obtain a square (9018009 = 3003²).

The spelling of 22042031 in words is "twenty-two million, forty-two thousand, thirty-one".