2422620 has 72 divisors (see below), whose sum is σ = 7543536. Its totient is φ = 628992.

The previous prime is 2422579. The next prime is 2422621. The reversal of 2422620 is 262242.

It is a happy number.

2422620 is a `hidden beast` number, since 2 + 42 + 2 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2422593 and 2422602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7584 + ... + 7896.

2^2422620 is an apocalyptic number.

2422620 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 2422620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3771768).

2422620 is an abundant number, since it is smaller than the sum of its proper divisors (5120916).

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

2422620 is a wasteful number, since it uses less digits than its factorization.

2422620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2422620 is about 1556.4767907039. The cubic root of 2422620 is about 134.3059024596.

Adding to 2422620 its reverse (262242), we get a palindrome (2684862).

The spelling of 2422620 in words is "two million, four hundred twenty-two thousand, six hundred twenty".