2121368 has 16 divisors (see below), whose sum is σ = 3995880. Its totient is φ = 1055808.

The previous prime is 2121367. The next prime is 2121373. The reversal of 2121368 is 8631212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1796 + ... + 2732.

2^2121368 is an apocalyptic number.

It is an amenable number.

2121368 is a deficient number, since it is larger than the sum of its proper divisors (1874512).

2121368 is a wasteful number, since it uses less digits than its factorization.

2121368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 1222 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 2121368 is about 1456.4916752251. The cubic root of 2121368 is about 128.4907915298.

The spelling of 2121368 in words is "two million, one hundred twenty-one thousand, three hundred sixty-eight".