22024398 has 64 divisors (see below), whose sum is σ = 51217920. Its totient is φ = 6249600.

The previous prime is 22024393. The next prime is 22024399. The reversal of 22024398 is 89342022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22024393) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70663 + ... + 70973.

It is an arithmetic number, because the mean of its divisors is an integer number (800280).

Almost surely, 2^22024398 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22024398, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25608960).

22024398 is an abundant number, since it is smaller than the sum of its proper divisors (29193522).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22024398 is a wasteful number, since it uses less digits than its factorization.

22024398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 22024398 is about 4693.0158746802. The cubic root of 22024398 is about 280.3074768522.

It can be divided in two parts, 22024 and 398, that added together give a palindrome (22422).

The spelling of 22024398 in words is "twenty-two million, twenty-four thousand, three hundred ninety-eight".