2544780 has 96 divisors (see below), whose sum is σ = 8354304. Its totient is φ = 566784.

The previous prime is 2544769. The next prime is 2544791. The reversal of 2544780 is 874452.

It is an interprime number because it is at equal distance from previous prime (2544769) and next prime (2544791).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30619 + ... + 30701.

It is an arithmetic number, because the mean of its divisors is an integer number (87024).

2^2544780 is an apocalyptic number.

2544780 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 2544780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4177152).

2544780 is an abundant number, since it is smaller than the sum of its proper divisors (5809524).

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

2544780 is a wasteful number, since it uses less digits than its factorization.

2544780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 2544780 is about 1595.2366595587. The cubic root of 2544780 is about 136.5264342531.

The spelling of 2544780 in words is "two million, five hundred forty-four thousand, seven hundred eighty".