22340031 has 24 divisors (see below), whose sum is σ = 35086464. Its totient is φ = 12605040.

The previous prime is 22339981. The next prime is 22340041. The reversal of 22340031 is 13004322.

It is not a de Polignac number, because 22340031 - 2⁹ = 22339519 is a prime.

It is a super-2 number, since 2×22340031² = 998153970161922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22340041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11286 + ... + 13116.

It is an arithmetic number, because the mean of its divisors is an integer number (1461936).

Almost surely, 2^22340031 is an apocalyptic number.

22340031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22340031 is a deficient number, since it is larger than the sum of its proper divisors (12746433).

22340031 is a wasteful number, since it uses less digits than its factorization.

22340031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 22340031 is about 4726.5241986051. The cubic root of 22340031 is about 281.6401652567.

Adding to 22340031 its reverse (13004322), we get a palindrome (35344353).

The spelling of 22340031 in words is "twenty-two million, three hundred forty thousand, thirty-one".