4172004 has 54 divisors (see below), whose sum is σ = 11230674. Its totient is φ = 1305600.

The previous prime is 4171991. The next prime is 4172029. The reversal of 4172004 is 4002714.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3069504 + 1102500 = 1752^2 + 1050^2 .

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10204 + ... + 10604.

Almost surely, 2^4172004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4172004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5615337).

4172004 is an abundant number, since it is smaller than the sum of its proper divisors (7058670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4172004 is a wasteful number, since it uses less digits than its factorization.

4172004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 4172004 is about 2042.5484082391. The cubic root of 4172004 is about 160.9835766332.

Adding to 4172004 its reverse (4002714), we get a palindrome (8174718).

The spelling of 4172004 in words is "four million, one hundred seventy-two thousand, four".