2572220 has 48 divisors (see below), whose sum is σ = 6504960. Its totient is φ = 834624.

The previous prime is 2572211. The next prime is 2572231. The reversal of 2572220 is 222752.

2572220 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2572192 and 2572201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2177 + ... + 3143.

It is an arithmetic number, because the mean of its divisors is an integer number (135520).

2^2572220 is an apocalyptic number.

2572220 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 2572220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3252480).

2572220 is an abundant number, since it is smaller than the sum of its proper divisors (3932740).

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

2572220 is a wasteful number, since it uses less digits than its factorization.

2572220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 1000 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 2572220 is about 1603.8142037032. The cubic root of 2572220 is about 137.0153960000.

Adding to 2572220 its reverse (222752), we get a palindrome (2794972).

The spelling of 2572220 in words is "two million, five hundred seventy-two thousand, two hundred twenty".