22400000031 has 16 divisors (see below), whose sum is σ = 30138834944. Its totient is φ = 14797538784.

The previous prime is 22399999991. The next prime is 22400000041. The reversal of 22400000031 is 13000000422.

It is not a de Polignac number, because 22400000031 - 2⁶ = 22399999967 is a prime.

It is a super-2 number, since 2×22400000031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22399999962 and 22400000016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22400000041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277845 + ... + 349281.

It is an arithmetic number, because the mean of its divisors is an integer number (1883677184).

Almost surely, 2^22400000031 is an apocalyptic number.

22400000031 is a deficient number, since it is larger than the sum of its proper divisors (7738834913).

22400000031 is a wasteful number, since it uses less digits than its factorization.

22400000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72390.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 22400000031 its reverse (13000000422), we get a palindrome (35400000453).

The spelling of 22400000031 in words is "twenty-two billion, four hundred million, thirty-one", and thus it is an aban number.