1247372 has 12 divisors (see below), whose sum is σ = 2494800. Its totient is φ = 534576.

The previous prime is 1247371. The next prime is 1247383. The reversal of 1247372 is 2737421.

1247372 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1247371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22247 + ... + 22302.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

2^1247372 is an apocalyptic number.

It is an amenable number.

1247372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1247372 is a wasteful number, since it uses less digits than its factorization.

1247372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44560 (or 44558 counting only the distinct ones).

The product of its digits is 2352, while the sum is 26.

The square root of 1247372 is about 1116.8580930449. The cubic root of 1247372 is about 107.6461901438.

The spelling of 1247372 in words is "one million, two hundred forty-seven thousand, three hundred seventy-two".