340135244421 has 16 divisors (see below), whose sum is σ = 518312742528. Its totient is φ = 194358715200.

The previous prime is 340135244363. The next prime is 340135244441. The reversal of 340135244421 is 124442531043.

It is not a de Polignac number, because 340135244421 - 2¹¹ = 340135242373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340135244441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 969291 + ... + 1272711.

It is an arithmetic number, because the mean of its divisors is an integer number (32394546408).

Almost surely, 2^340135244421 is an apocalyptic number.

It is an amenable number.

340135244421 is a deficient number, since it is larger than the sum of its proper divisors (178177498107).

340135244421 is a wasteful number, since it uses less digits than its factorization.

340135244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356812.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 340135244421 its reverse (124442531043), we get a palindrome (464577775464).

The spelling of 340135244421 in words is "three hundred forty billion, one hundred thirty-five million, two hundred forty-four thousand, four hundred twenty-one".