2672820 has 72 divisors (see below), whose sum is σ = 8386560. Its totient is φ = 688320.

The previous prime is 2672797. The next prime is 2672821. The reversal of 2672820 is 282762.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2672821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5341 + ... + 5819.

It is an arithmetic number, because the mean of its divisors is an integer number (116480).

2^2672820 is an apocalyptic number.

2672820 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 2672820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4193280).

2672820 is an abundant number, since it is smaller than the sum of its proper divisors (5713740).

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

2672820 is a wasteful number, since it uses less digits than its factorization.

2672820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 2672820 is about 1634.8761420976. The cubic root of 2672820 is about 138.7788350103.

The spelling of 2672820 in words is "two million, six hundred seventy-two thousand, eight hundred twenty".