340423011 has 12 divisors (see below), whose sum is σ = 520647192. Its totient is φ = 213598656.

The previous prime is 340423001. The next prime is 340423037. The reversal of 340423011 is 110324043.

It is not a de Polignac number, because 340423011 - 2⁶ = 340422947 is a prime.

It is a super-2 number, since 2×340423011² = 231775652836612242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340423001) 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 11 ways as a sum of consecutive naturals, for example, 1112341 + ... + 1112646.

It is an arithmetic number, because the mean of its divisors is an integer number (43387266).

Almost surely, 2^340423011 is an apocalyptic number.

340423011 is a deficient number, since it is larger than the sum of its proper divisors (180224181).

340423011 is a wasteful number, since it uses less digits than its factorization.

340423011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225010 (or 2225007 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 340423011 is about 18450.5558452855. Note that the first 3 decimals coincide. The cubic root of 340423011 is about 698.2425375594.

Adding to 340423011 its reverse (110324043), we get a palindrome (450747054).

The spelling of 340423011 in words is "three hundred forty million, four hundred twenty-three thousand, eleven".