4181572 has 6 divisors (see below), whose sum is σ = 7317758. Its totient is φ = 2090784.

The previous prime is 4181557. The next prime is 4181579. The reversal of 4181572 is 2751814.

It can be written as a sum of positive squares in only one way, i.e., 3594816 + 586756 = 1896^2 + 766^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4181572.

It is not an unprimeable number, because it can be changed into a prime (4181579) by changing a digit.

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 as a sum of consecutive naturals, namely, 522693 + ... + 522700.

Almost surely, 2^4181572 is an apocalyptic number.

It is an amenable number.

4181572 is a deficient number, since it is larger than the sum of its proper divisors (3136186).

4181572 is a wasteful number, since it uses less digits than its factorization.

4181572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045397 (or 1045395 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 4181572 is about 2044.8892390543. The cubic root of 4181572 is about 161.1065483008.

It can be divided in two parts, 4181 and 572, that added together give a triangular number (4753 = T₉₇).

The spelling of 4181572 in words is "four million, one hundred eighty-one thousand, five hundred seventy-two".