22879724220 has 144 divisors (see below), whose sum is σ = 71718716160. Its totient is φ = 5898009600.

The previous prime is 22879724137. The next prime is 22879724233. The reversal of 22879724220 is 2242797822.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7191030 + ... + 7194210.

It is an arithmetic number, because the mean of its divisors is an integer number (498046640).

Almost surely, 2^22879724220 is an apocalyptic number.

22879724220 is a gapful number since it is divisible by the number (20) 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 22879724220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35859358080).

22879724220 is an abundant number, since it is smaller than the sum of its proper divisors (48838991940).

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

22879724220 is a wasteful number, since it uses less digits than its factorization.

22879724220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4516 (or 4511 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The spelling of 22879724220 in words is "twenty-two billion, eight hundred seventy-nine million, seven hundred twenty-four thousand, two hundred twenty".