2740830 has 32 divisors (see below), whose sum is σ = 6649344. Its totient is φ = 722976.

The previous prime is 2740817. The next prime is 2740831. The reversal of 2740830 is 380472.

It is a super-4 number, since 4×2740830⁴ (a number of 27 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2740830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2647 + ... + 3533.

It is an arithmetic number, because the mean of its divisors is an integer number (207792).

2^2740830 is an apocalyptic number.

2740830 is an abundant number, since it is smaller than the sum of its proper divisors (3908514).

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

2740830 is a wasteful number, since it uses less digits than its factorization.

2740830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 2740830 is about 1655.5452274100. The cubic root of 2740830 is about 139.9460676616.

It can be divided in two parts, 2740 and 830, that added together give a triangular number (3570 = T₈₄).

The spelling of 2740830 in words is "two million, seven hundred forty thousand, eight hundred thirty".