340021563244 has 72 divisors (see below), whose sum is σ = 704503102464. Its totient is φ = 143066431200.

The previous prime is 340021563173. The next prime is 340021563253. The reversal of 340021563244 is 442365120043.

It is a super-2 number, since 2×340021563244² (a number of 24 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 147562 + ... + 837745.

It is an arithmetic number, because the mean of its divisors is an integer number (9784765312).

Almost surely, 2^340021563244 is an apocalyptic number.

It is an amenable number.

340021563244 is an abundant number, since it is smaller than the sum of its proper divisors (364481539220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340021563244 is a wasteful number, since it uses less digits than its factorization.

340021563244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985387 (or 985374 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 340021563244 its reverse (442365120043), we get a palindrome (782386683287).

The spelling of 340021563244 in words is "three hundred forty billion, twenty-one million, five hundred sixty-three thousand, two hundred forty-four".