2622222720 has 384 divisors, whose sum is σ = 10120350240. Its totient is φ = 644972544.

The previous prime is 2622222679. The next prime is 2622222769. The reversal of 2622222720 is 272222262.

It is a tau number, because it is divible by the number of its divisors (384).

It is a super-3 number, since 3×2622222720³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2021112 + ... + 2022408.

Almost surely, 2^2622222720 is an apocalyptic number.

2622222720 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 2622222720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5060175120).

2622222720 is an abundant number, since it is smaller than the sum of its proper divisors (7498127520).

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

2622222720 is a wasteful number, since it uses less digits than its factorization.

2622222720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 2622222720 is about 51207.6431795098. The cubic root of 2622222720 is about 1378.9754209655.

Adding to 2622222720 its reverse (272222262), we get a palindrome (2894444982).

The spelling of 2622222720 in words is "two billion, six hundred twenty-two million, two hundred twenty-two thousand, seven hundred twenty".