2162738 has 4 divisors (see below), whose sum is σ = 3244110. Its totient is φ = 1081368.

The previous prime is 2162737. The next prime is 2162747. The reversal of 2162738 is 8372612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2111209 + 51529 = 1453^2 + 227^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2162738.

It is not an unprimeable number, because it can be changed into a prime (2162737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540683 + ... + 540686.

2^2162738 is an apocalyptic number.

2162738 is a deficient number, since it is larger than the sum of its proper divisors (1081372).

2162738 is a wasteful number, since it uses less digits than its factorization.

2162738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081371.

The product of its digits is 4032, while the sum is 29.

The square root of 2162738 is about 1470.6250371866. The cubic root of 2162738 is about 129.3206772491.

The spelling of 2162738 in words is "two million, one hundred sixty-two thousand, seven hundred thirty-eight".