22427829 has 12 divisors (see below), whose sum is σ = 33804576. Its totient is φ = 14301672.

The previous prime is 22427753. The next prime is 22427837. The reversal of 22427829 is 92872422.

It is a happy number.

It is not a de Polignac number, because 22427829 - 2¹² = 22423733 is a prime.

It is a super-3 number, since 3×22427829³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22427793 and 22427802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22427869) 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 11 ways as a sum of consecutive naturals, for example, 53967 + ... + 54380.

It is an arithmetic number, because the mean of its divisors is an integer number (2817048).

Almost surely, 2^22427829 is an apocalyptic number.

It is an amenable number.

22427829 is a deficient number, since it is larger than the sum of its proper divisors (11376747).

22427829 is a wasteful number, since it uses less digits than its factorization.

22427829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108376 (or 108373 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22427829 is about 4735.8028886346. The cubic root of 22427829 is about 282.0086386368.

The spelling of 22427829 in words is "twenty-two million, four hundred twenty-seven thousand, eight hundred twenty-nine".