340042726 has 8 divisors (see below), whose sum is σ = 513958104. Its totient is φ = 168723360.

The previous prime is 340042723. The next prime is 340042727. The reversal of 340042726 is 627240043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×340042726² = 231258111011022152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340042694 and 340042703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340042723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648675 + ... + 649198.

It is an arithmetic number, because the mean of its divisors is an integer number (64244763).

Almost surely, 2^340042726 is an apocalyptic number.

340042726 is a deficient number, since it is larger than the sum of its proper divisors (173915378).

340042726 is a wasteful number, since it uses less digits than its factorization.

340042726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298006.

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

The square root of 340042726 is about 18440.2474495328. The cubic root of 340042726 is about 697.9824394944.

Adding to 340042726 its reverse (627240043), we get a palindrome (967282769).

The spelling of 340042726 in words is "three hundred forty million, forty-two thousand, seven hundred twenty-six".