2543730 has 32 divisors (see below), whose sum is σ = 6977664. Its totient is φ = 581376.

The previous prime is 2543729. The next prime is 2543747. The reversal of 2543730 is 373452.

It is a d-powerful number, because it can be written as 2 + 5⁹ + 4³ + 3¹⁰ + 7² + 3¹² + 0 .

It is a self number, because there is not a number n which added to its sum of digits gives 2543730.

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, 5847 + ... + 6266.

It is an arithmetic number, because the mean of its divisors is an integer number (218052).

2^2543730 is an apocalyptic number.

2543730 is an abundant number, since it is smaller than the sum of its proper divisors (4433934).

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

2543730 is a wasteful number, since it uses less digits than its factorization.

2543730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12130.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 2543730 is about 1594.9075208300. The cubic root of 2543730 is about 136.5076543092.

The spelling of 2543730 in words is "two million, five hundred forty-three thousand, seven hundred thirty".