662340121 has 16 divisors (see below), whose sum is σ = 686320128. Its totient is φ = 638848000.

The previous prime is 662340113. The next prime is 662340127. The reversal of 662340121 is 121043266.

It is a cyclic number.

It is not a de Polignac number, because 662340121 - 2³ = 662340113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (662340127) 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, 1651521 + ... + 1651921.

It is an arithmetic number, because the mean of its divisors is an integer number (42895008).

Almost surely, 2^662340121 is an apocalyptic number.

It is an amenable number.

662340121 is a deficient number, since it is larger than the sum of its proper divisors (23980007).

662340121 is a wasteful number, since it uses less digits than its factorization.

662340121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 662340121 is about 25735.9694008211. The cubic root of 662340121 is about 871.6865689079.

Adding to 662340121 its reverse (121043266), we get a palindrome (783383387).

The spelling of 662340121 in words is "six hundred sixty-two million, three hundred forty thousand, one hundred twenty-one".