22998031 has 4 divisors (see below), whose sum is σ = 26283472. Its totient is φ = 19712592.

The previous prime is 22998029. The next prime is 22998047. The reversal of 22998031 is 13089922.

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

It is a cyclic number.

It is not a de Polignac number, because 22998031 - 2¹ = 22998029 is a prime.

It is a super-2 number, since 2×22998031² = 1057818859753922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22998011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642710 + ... + 1642723.

It is an arithmetic number, because the mean of its divisors is an integer number (6570868).

Almost surely, 2^22998031 is an apocalyptic number.

22998031 is a deficient number, since it is larger than the sum of its proper divisors (3285441).

22998031 is an equidigital number, since it uses as much as digits as its factorization.

22998031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285440.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 22998031 is about 4795.6262364784. The cubic root of 22998031 is about 284.3785824288.

The spelling of 22998031 in words is "twenty-two million, nine hundred ninety-eight thousand, thirty-one".