340742859 has 4 divisors (see below), whose sum is σ = 454323816. Its totient is φ = 227161904.

The previous prime is 340742821. The next prime is 340742867. The reversal of 340742859 is 958247043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340742859 - 2¹¹ = 340740811 is a prime.

It is a super-2 number, since 2×340742859² = 232211391918987762, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 340742859.

It is not an unprimeable number, because it can be changed into a prime (340741859) 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, 56790474 + ... + 56790479.

It is an arithmetic number, because the mean of its divisors is an integer number (113580954).

Almost surely, 2^340742859 is an apocalyptic number.

340742859 is a deficient number, since it is larger than the sum of its proper divisors (113580957).

340742859 is a wasteful number, since it uses less digits than its factorization.

340742859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113580956.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 340742859 is about 18459.2215166296. The cubic root of 340742859 is about 698.4611494667.

The spelling of 340742859 in words is "three hundred forty million, seven hundred forty-two thousand, eight hundred fifty-nine".