2120738 has 8 divisors (see below), whose sum is σ = 3319488. Its totient is φ = 1014244.

The previous prime is 2120731. The next prime is 2120747. The reversal of 2120738 is 8370212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2120731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23006 + ... + 23097.

It is an arithmetic number, because the mean of its divisors is an integer number (414936).

2^2120738 is an apocalyptic number.

2120738 is a deficient number, since it is larger than the sum of its proper divisors (1198750).

2120738 is a wasteful number, since it uses less digits than its factorization.

2120738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46128.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2120738 is about 1456.2753860448. The cubic root of 2120738 is about 128.4780706168.

The spelling of 2120738 in words is "two million, one hundred twenty thousand, seven hundred thirty-eight".