340042771 has 2 divisors, whose sum is σ = 340042772. Its totient is φ = 340042770.

The previous prime is 340042727. The next prime is 340042793. The reversal of 340042771 is 177240043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340042771 - 2¹⁵ = 340010003 is a prime.

It is a super-2 number, since 2×340042771² = 231258172218716882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340042271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170021385 + 170021386.

It is an arithmetic number, because the mean of its divisors is an integer number (170021386).

Almost surely, 2^340042771 is an apocalyptic number.

340042771 is a deficient number, since it is larger than the sum of its proper divisors (1).

340042771 is an equidigital number, since it uses as much as digits as its factorization.

340042771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 340042771 is about 18440.2486696899. The cubic root of 340042771 is about 697.9824702839.

The spelling of 340042771 in words is "three hundred forty million, forty-two thousand, seven hundred seventy-one".