2546720 has 48 divisors (see below), whose sum is σ = 6568128. Its totient is φ = 925440.

The previous prime is 2546701. The next prime is 2546729. The reversal of 2546720 is 276452.

It is a self number, because there is not a number n which added to its sum of digits gives 2546720.

It is not an unprimeable number, because it can be changed into a prime (2546729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (136836).

2^2546720 is an apocalyptic number.

2546720 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 2546720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3284064).

2546720 is an abundant number, since it is smaller than the sum of its proper divisors (4021408).

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

2546720 is a wasteful number, since it uses less digits than its factorization.

2546720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2546720 is about 1595.8446039637. The cubic root of 2546720 is about 136.5611188500.

The spelling of 2546720 in words is "two million, five hundred forty-six thousand, seven hundred twenty".