4172026 has 4 divisors (see below), whose sum is σ = 6258042. Its totient is φ = 2086012.

The previous prime is 4171991. The next prime is 4172029. The reversal of 4172026 is 6202714.

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., 3059001 + 1113025 = 1749^2 + 1055^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4171988 and 4172006.

It is not an unprimeable number, because it can be changed into a prime (4172029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1043005 + ... + 1043008.

Almost surely, 2^4172026 is an apocalyptic number.

4172026 is a deficient number, since it is larger than the sum of its proper divisors (2086016).

4172026 is a wasteful number, since it uses less digits than its factorization.

4172026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086015.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 4172026 is about 2042.5537936613. The cubic root of 4172026 is about 160.9838596013.

The spelling of 4172026 in words is "four million, one hundred seventy-two thousand, twenty-six".