20122824 has 32 divisors (see below), whose sum is σ = 52956000. Its totient is φ = 6354432.

The previous prime is 20122819. The next prime is 20122829. The reversal of 20122824 is 42822102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20122819) and next prime (20122829).

It is a self number, because there is not a number n which added to its sum of digits gives 20122824.

It is not an unprimeable number, because it can be changed into a prime (20122829) 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, 21609 + ... + 22520.

It is an arithmetic number, because the mean of its divisors is an integer number (1654875).

Almost surely, 2^20122824 is an apocalyptic number.

20122824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20122824 is an abundant number, since it is smaller than the sum of its proper divisors (32833176).

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

20122824 is a wasteful number, since it uses less digits than its factorization.

20122824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44157 (or 44153 counting only the distinct ones).

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

The square root of 20122824 is about 4485.8470771973. The cubic root of 20122824 is about 271.9962874349.

Adding to 20122824 its reverse (42822102), we get a palindrome (62944926).

The spelling of 20122824 in words is "twenty million, one hundred twenty-two thousand, eight hundred twenty-four".