22457829 has 8 divisors (see below), whose sum is σ = 31519840. Its totient is φ = 14183856.

The previous prime is 22457807. The next prime is 22457839. The reversal of 22457829 is 92875422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22457829 - 2⁸ = 22457573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22457839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196942 + ... + 197055.

It is an arithmetic number, because the mean of its divisors is an integer number (3939980).

Almost surely, 2^22457829 is an apocalyptic number.

It is an amenable number.

22457829 is a deficient number, since it is larger than the sum of its proper divisors (9062011).

22457829 is a wasteful number, since it uses less digits than its factorization.

22457829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394019.

The product of its digits is 80640, while the sum is 39.

The square root of 22457829 is about 4738.9691917125. The cubic root of 22457829 is about 282.1343231119.

The spelling of 22457829 in words is "twenty-two million, four hundred fifty-seven thousand, eight hundred twenty-nine".