22690829 has 4 divisors (see below), whose sum is σ = 25932384. Its totient is φ = 19449276.

The previous prime is 22690813. The next prime is 22690861. The reversal of 22690829 is 92809622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92809622 = 2 ⋅46404811.

It is not a de Polignac number, because 22690829 - 2⁴ = 22690813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22690792 and 22690801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22690229) 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, 1620767 + ... + 1620780.

It is an arithmetic number, because the mean of its divisors is an integer number (6483096).

Almost surely, 2^22690829 is an apocalyptic number.

It is an amenable number.

22690829 is a deficient number, since it is larger than the sum of its proper divisors (3241555).

22690829 is an equidigital number, since it uses as much as digits as its factorization.

22690829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241554.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 22690829 is about 4763.4891623683. The cubic root of 22690829 is about 283.1066827161.

The spelling of 22690829 in words is "twenty-two million, six hundred ninety thousand, eight hundred twenty-nine".