1245944 has 32 divisors (see below), whose sum is σ = 2812800. Its totient is φ = 505440.

The previous prime is 1245943. The next prime is 1245953. The reversal of 1245944 is 4495421.

It is a super-2 number, since 2×1245944² = 3104752902272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245943) 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, 479 + ... + 1649.

It is an arithmetic number, because the mean of its divisors is an integer number (87900).

2^1245944 is an apocalyptic number.

1245944 is a gapful number since it is divisible by the number (14) 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 1245944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406400).

1245944 is an abundant number, since it is smaller than the sum of its proper divisors (1566856).

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

1245944 is a wasteful number, since it uses less digits than its factorization.

1245944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1199 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 1245944 is about 1116.2186165801. The cubic root of 1245944 is about 107.6050964267.

The spelling of 1245944 in words is "one million, two hundred forty-five thousand, nine hundred forty-four".