340381263 has 4 divisors (see below), whose sum is σ = 453841688. Its totient is φ = 226920840.

The previous prime is 340381253. The next prime is 340381273. The reversal of 340381263 is 362183043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362183043 = 3 ⋅120727681.

It is an interprime number because it is at equal distance from previous prime (340381253) and next prime (340381273).

It is not a de Polignac number, because 340381263 - 2⁹ = 340380751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 340381263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340381253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56730208 + ... + 56730213.

It is an arithmetic number, because the mean of its divisors is an integer number (113460422).

Almost surely, 2^340381263 is an apocalyptic number.

340381263 is a deficient number, since it is larger than the sum of its proper divisors (113460425).

340381263 is a wasteful number, since it uses less digits than its factorization.

340381263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113460424.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 340381263 is about 18449.4244625679. The cubic root of 340381263 is about 698.2139932482.

It can be divided in two parts, 3403 and 81263, that added together give a triangular number (84666 = T₄₁₁).

The spelling of 340381263 in words is "three hundred forty million, three hundred eighty-one thousand, two hundred sixty-three".