2740231 has 8 divisors (see below), whose sum is σ = 2981664. Its totient is φ = 2503200.

The previous prime is 2740223. The next prime is 2740249. The reversal of 2740231 is 1320472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2740231 - 2³ = 2740223 is a prime.

It is a super-2 number, since 2×2740231² = 15017731866722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2740199 and 2740208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270 + ... + 2356.

It is an arithmetic number, because the mean of its divisors is an integer number (372708).

2^2740231 is an apocalyptic number.

2740231 is a deficient number, since it is larger than the sum of its proper divisors (241433).

2740231 is a wasteful number, since it uses less digits than its factorization.

2740231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2740231 is about 1655.3643103559. The cubic root of 2740231 is about 139.9358719907.

The spelling of 2740231 in words is "two million, seven hundred forty thousand, two hundred thirty-one".