340020405244 has 48 divisors (see below), whose sum is σ = 662352294240. Its totient is φ = 151743479040.

The previous prime is 340020405223. The next prime is 340020405281. The reversal of 340020405244 is 442504020043.

It is a super-2 number, since 2×340020405244² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721279 + ... + 1095574.

It is an arithmetic number, because the mean of its divisors is an integer number (13799006130).

Almost surely, 2^340020405244 is an apocalyptic number.

It is an amenable number.

340020405244 is a deficient number, since it is larger than the sum of its proper divisors (322331888996).

340020405244 is a wasteful number, since it uses less digits than its factorization.

340020405244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816990 (or 1816988 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 340020405244 its reverse (442504020043), we get a palindrome (782524425287).

The spelling of 340020405244 in words is "three hundred forty billion, twenty million, four hundred five thousand, two hundred forty-four".