2742340 has 12 divisors (see below), whose sum is σ = 5758956. Its totient is φ = 1096928.

The previous prime is 2742323. The next prime is 2742343. The reversal of 2742340 is 432472.

It can be written as a sum of positive squares in 2 ways, for example, as 984064 + 1758276 = 992^2 + 1326^2 .

It is not an unprimeable number, because it can be changed into a prime (2742343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68539 + ... + 68578.

It is an arithmetic number, because the mean of its divisors is an integer number (479913).

2^2742340 is an apocalyptic number.

2742340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2742340 is an abundant number, since it is smaller than the sum of its proper divisors (3016616).

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

2742340 is a wasteful number, since it uses less digits than its factorization.

2742340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137126 (or 137124 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 2742340 is about 1656.0012077290. The cubic root of 2742340 is about 139.9717630127.

The spelling of 2742340 in words is "two million, seven hundred forty-two thousand, three hundred forty".