2658222 has 72 divisors (see below), whose sum is σ = 7088016. Its totient is φ = 705024.

The previous prime is 2658221. The next prime is 2658247. The reversal of 2658222 is 2228562.

2658222 is a `hidden beast` number, since 2 + 658 + 2 + 2 + 2 = 666.

It is a super-2 number, since 2×2658222² = 14132288402568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2658221) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36378 + ... + 36450.

2^2658222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2658222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3544008).

2658222 is an abundant number, since it is smaller than the sum of its proper divisors (4429794).

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

2658222 is a wasteful number, since it uses less digits than its factorization.

2658222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 102 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2658222 is about 1630.4054710409. The cubic root of 2658222 is about 138.5257199603.

The spelling of 2658222 in words is "two million, six hundred fifty-eight thousand, two hundred twenty-two".