2740731 has 16 divisors (see below), whose sum is σ = 4396800. Its totient is φ = 1483488.

The previous prime is 2740721. The next prime is 2740733. The reversal of 2740731 is 1370472.

It is not a de Polignac number, because 2740731 - 2⁶ = 2740667 is a prime.

It is a super-2 number, since 2×2740731² = 15023212828722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740733) 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, 3036 + ... + 3833.

It is an arithmetic number, because the mean of its divisors is an integer number (274800).

2^2740731 is an apocalyptic number.

2740731 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2740731 is a deficient number, since it is larger than the sum of its proper divisors (1656069).

2740731 is a wasteful number, since it uses less digits than its factorization.

2740731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 2740731 is about 1655.5153276246. The cubic root of 2740731 is about 139.9443826699.

The spelling of 2740731 in words is "two million, seven hundred forty thousand, seven hundred thirty-one".