20422376 has 32 divisors (see below), whose sum is σ = 41580000. Its totient is φ = 9347520.

The previous prime is 20422357. The next prime is 20422421. The reversal of 20422376 is 67322402.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12875 + ... + 14373.

It is an arithmetic number, because the mean of its divisors is an integer number (1299375).

Almost surely, 2^20422376 is an apocalyptic number.

20422376 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20422376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20790000).

20422376 is an abundant number, since it is smaller than the sum of its proper divisors (21157624).

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

20422376 is a wasteful number, since it uses less digits than its factorization.

20422376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20422376 is about 4519.1123022116. The cubic root of 20422376 is about 273.3393071601.

Adding to 20422376 its sum of digits (26), we get a palindrome (20422402).

Adding to 20422376 its reverse (67322402), we get a palindrome (87744778).

The spelling of 20422376 in words is "twenty million, four hundred twenty-two thousand, three hundred seventy-six".