22824021 has 8 divisors (see below), whose sum is σ = 33198624. Its totient is φ = 13832720.

The previous prime is 22824007. The next prime is 22824023. The reversal of 22824021 is 12042822.

It is a happy number.

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

It is not a de Polignac number, because 22824021 - 2⁷ = 22823893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22824023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345786 + ... + 345851.

It is an arithmetic number, because the mean of its divisors is an integer number (4149828).

Almost surely, 2^22824021 is an apocalyptic number.

It is an amenable number.

22824021 is a deficient number, since it is larger than the sum of its proper divisors (10374603).

22824021 is a wasteful number, since it uses less digits than its factorization.

22824021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691651.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 22824021 is about 4777.4492148007. The cubic root of 22824021 is about 283.6595346429.

Adding to 22824021 its reverse (12042822), we get a palindrome (34866843).

The spelling of 22824021 in words is "twenty-two million, eight hundred twenty-four thousand, twenty-one".