340240263 has 24 divisors (see below), whose sum is σ = 510828528. Its totient is φ = 201168000.

The previous prime is 340240247. The next prime is 340240301. The reversal of 340240263 is 362042043.

It is a happy number.

It is not a de Polignac number, because 340240263 - 2⁴ = 340240247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340240223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3453 + ... + 26313.

It is an arithmetic number, because the mean of its divisors is an integer number (21284522).

Almost surely, 2^340240263 is an apocalyptic number.

340240263 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

340240263 is a deficient number, since it is larger than the sum of its proper divisors (170588265).

340240263 is a wasteful number, since it uses less digits than its factorization.

340240263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22927 (or 22916 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 340240263 is about 18445.6028093419. The cubic root of 340240263 is about 698.1175702262.

The spelling of 340240263 in words is "three hundred forty million, two hundred forty thousand, two hundred sixty-three".