340542013 has 12 divisors (see below), whose sum is σ = 403618140. Its totient is φ = 286383552.

The previous prime is 340542001. The next prime is 340542017. The reversal of 340542013 is 310245043.

It can be written as a sum of positive squares in 2 ways, for example, as 257859364 + 82682649 = 16058^2 + 9093^2 .

It is a de Polignac number, because none of the positive numbers 2^k-340542013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340542017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62968 + ... + 68161.

It is an arithmetic number, because the mean of its divisors is an integer number (33634845).

Almost surely, 2^340542013 is an apocalyptic number.

It is an amenable number.

340542013 is a deficient number, since it is larger than the sum of its proper divisors (63076127).

340542013 is a wasteful number, since it uses less digits than its factorization.

340542013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131196 (or 131189 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 340542013 is about 18453.7804527961. The cubic root of 340542013 is about 698.3238898529.

Adding to 340542013 its reverse (310245043), we get a palindrome (650787056).

The spelling of 340542013 in words is "three hundred forty million, five hundred forty-two thousand, thirteen".