2740431 has 16 divisors (see below), whose sum is σ = 3829760. Its totient is φ = 1740960.

The previous prime is 2740421. The next prime is 2740453. The reversal of 2740431 is 1340472.

It is not a de Polignac number, because 2740431 - 2¹⁴ = 2724047 is a prime.

It is a super-2 number, since 2×2740431² = 15019924131522, 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 = 2740398 and 2740407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740421) 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, 7161 + ... + 7533.

It is an arithmetic number, because the mean of its divisors is an integer number (239360).

2^2740431 is an apocalyptic number.

2740431 is a deficient number, since it is larger than the sum of its proper divisors (1089329).

2740431 is a wasteful number, since it uses less digits than its factorization.

2740431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 2740431 is about 1655.4247189166. The cubic root of 2740431 is about 139.9392763866.

The spelling of 2740431 in words is "two million, seven hundred forty thousand, four hundred thirty-one".