276240043 has 2 divisors, whose sum is σ = 276240044. Its totient is φ = 276240042.

The previous prime is 276240023. The next prime is 276240067. The reversal of 276240043 is 340042672.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-276240043 is a prime.

It is a super-2 number, since 2×276240043² = 152617122713283698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 276239993 and 276240020.

It is not a weakly prime, because it can be changed into another prime (276240023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138120021 + 138120022.

It is an arithmetic number, because the mean of its divisors is an integer number (138120022).

Almost surely, 2^276240043 is an apocalyptic number.

276240043 is a deficient number, since it is larger than the sum of its proper divisors (1).

276240043 is an equidigital number, since it uses as much as digits as its factorization.

276240043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 276240043 is about 16620.4706010389. The cubic root of 276240043 is about 651.2717059826.

The spelling of 276240043 in words is "two hundred seventy-six million, two hundred forty thousand, forty-three".