22649031 has 8 divisors (see below), whose sum is σ = 33554160. Its totient is φ = 15099336.

The previous prime is 22649021. The next prime is 22649047. The reversal of 22649031 is 13094622.

It is not a de Polignac number, because 22649031 - 2⁵ = 22648999 is a prime.

It is a super-2 number, since 2×22649031² = 1025957210477922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 838853 = 22649031 / (2 + 2 + 6 + 4 + 9 + 0 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 22648986 and 22649004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22649021) 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, 419400 + ... + 419453.

It is an arithmetic number, because the mean of its divisors is an integer number (4194270).

Almost surely, 2^22649031 is an apocalyptic number.

22649031 is a deficient number, since it is larger than the sum of its proper divisors (10905129).

22649031 is an equidigital number, since it uses as much as digits as its factorization.

22649031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838862 (or 838856 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22649031 is about 4759.0998098380. The cubic root of 22649031 is about 282.9327421567.

The spelling of 22649031 in words is "twenty-two million, six hundred forty-nine thousand, thirty-one".