340302410304021 has 160 divisors (see below), whose sum is σ = 589879692864000. Its totient is φ = 193222881976320.

The previous prime is 340302410303993. The next prime is 340302410304071. The reversal of 340302410304021 is 120403014203043.

340302410304021 is a `hidden beast` number, since 3 + 40 + 302 + 4 + 10 + 304 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 340302410304021 - 2⁹ = 340302410303509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340302410304071) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9821403505 + ... + 9821438153.

It is an arithmetic number, because the mean of its divisors is an integer number (3686748080400).

Almost surely, 2^{340302410304021} is an apocalyptic number.

It is an amenable number.

340302410304021 is a deficient number, since it is larger than the sum of its proper divisors (249577282559979).

340302410304021 is a wasteful number, since it uses less digits than its factorization.

340302410304021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37641 (or 37632 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 340302410304021 its reverse (120403014203043), we get a palindrome (460705424507064).

The spelling of 340302410304021 in words is "three hundred forty trillion, three hundred two billion, four hundred ten million, three hundred four thousand, twenty-one".