1247232 has 96 divisors (see below), whose sum is σ = 3931200. Its totient is φ = 344064.

The previous prime is 1247231. The next prime is 1247243. The reversal of 1247232 is 2327421.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1247199 and 1247208.

It is not an unprimeable number, because it can be changed into a prime (1247231) 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, 42994 + ... + 43022.

It is an arithmetic number, because the mean of its divisors is an integer number (40950).

2^1247232 is an apocalyptic number.

1247232 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 1247232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965600).

1247232 is an abundant number, since it is smaller than the sum of its proper divisors (2683968).

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

1247232 is an equidigital number, since it uses as much as digits as its factorization.

1247232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 41 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 1247232 is about 1116.7954154634. The cubic root of 1247232 is about 107.6421627351.

The spelling of 1247232 in words is "one million, two hundred forty-seven thousand, two hundred thirty-two".