2729340 has 72 divisors (see below), whose sum is σ = 8452080. Its totient is φ = 712704.

The previous prime is 2729327. The next prime is 2729347. The reversal of 2729340 is 439272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729347) 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, 10492 + ... + 10748.

It is an arithmetic number, because the mean of its divisors is an integer number (117390).

2^2729340 is an apocalyptic number.

2729340 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 2729340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4226040).

2729340 is an abundant number, since it is smaller than the sum of its proper divisors (5722740).

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

2729340 is a wasteful number, since it uses less digits than its factorization.

2729340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 326 counting only the distinct ones).

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

The square root of 2729340 is about 1652.0714270273. The cubic root of 2729340 is about 139.7502349472.

The spelling of 2729340 in words is "two million, seven hundred twenty-nine thousand, three hundred forty".