1672138 has 16 divisors (see below), whose sum is σ = 2741256. Its totient is φ = 760320.

The previous prime is 1672129. The next prime is 1672199. The reversal of 1672138 is 8312761.

It can be written as a sum of positive squares in 4 ways, for example, as 927369 + 744769 = 963^2 + 863^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1458 + ... + 2338.

2^1672138 is an apocalyptic number.

1672138 is a deficient number, since it is larger than the sum of its proper divisors (1069118).

1672138 is a wasteful number, since it uses less digits than its factorization.

1672138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its digits is 2016, while the sum is 28.

The square root of 1672138 is about 1293.1117507779. Note that the first 3 decimals coincide. The cubic root of 1672138 is about 118.6927080976.

Adding to 1672138 its reverse (8312761), we get a palindrome (9984899).

The spelling of 1672138 in words is "one million, six hundred seventy-two thousand, one hundred thirty-eight".