1043172 has 48 divisors (see below), whose sum is σ = 2916480. Its totient is φ = 320544.

The previous prime is 1043167. The next prime is 1043173. The reversal of 1043172 is 2713401.

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

It is not an unprimeable number, because it can be changed into a prime (1043173) 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 in 15 ways as a sum of consecutive naturals, for example, 1033 + ... + 1775.

It is an arithmetic number, because the mean of its divisors is an integer number (60760).

2^1043172 is an apocalyptic number.

1043172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1043172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458240).

1043172 is an abundant number, since it is smaller than the sum of its proper divisors (1873308).

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

1043172 is a wasteful number, since it uses less digits than its factorization.

1043172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1043172 is about 1021.3579196344. The cubic root of 1043172 is about 101.4188403772.

Adding to 1043172 its reverse (2713401), we get a palindrome (3756573).

The spelling of 1043172 in words is "one million, forty-three thousand, one hundred seventy-two".