2739240 has 96 divisors (see below), whose sum is σ = 10183680. Its totient is φ = 625536.

The previous prime is 2739239. The next prime is 2739241. The reversal of 2739240 is 429372.

It is an interprime number because it is at equal distance from previous prime (2739239) and next prime (2739241).

It is not an unprimeable number, because it can be changed into a prime (2739241) 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, 1977 + ... + 3063.

It is an arithmetic number, because the mean of its divisors is an integer number (106080).

2^2739240 is an apocalyptic number.

2739240 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 2739240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5091840).

2739240 is an abundant number, since it is smaller than the sum of its proper divisors (7444440).

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

2739240 is a wasteful number, since it uses less digits than its factorization.

2739240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 2739240 is about 1655.0649534082. The cubic root of 2739240 is about 139.9190007647.

The spelling of 2739240 in words is "two million, seven hundred thirty-nine thousand, two hundred forty".