4172638 has 16 divisors (see below), whose sum is σ = 6498000. Its totient is φ = 2007936.

The previous prime is 4172627. The next prime is 4172639. The reversal of 4172638 is 8362714.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8113 + ... + 8611.

It is an arithmetic number, because the mean of its divisors is an integer number (406125).

Almost surely, 2^4172638 is an apocalyptic number.

4172638 is a deficient number, since it is larger than the sum of its proper divisors (2325362).

4172638 is a wasteful number, since it uses less digits than its factorization.

4172638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651.

The product of its digits is 8064, while the sum is 31.

The square root of 4172638 is about 2042.7036006234. The cubic root of 4172638 is about 160.9917308614.

The spelling of 4172638 in words is "four million, one hundred seventy-two thousand, six hundred thirty-eight".