1279488 has 120 divisors (see below), whose sum is σ = 4198392. Its totient is φ = 344064.
The previous prime is 1279483. The next prime is 1279493. The reversal of 1279488 is 8849721.
It is an interprime number because it is at equal distance from previous prime (1279483) and next prime (1279493).
It is an Ulam number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1279483) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75256 + ... + 75272.
21279488 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1279488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2099196).
1279488 is an abundant number, since it is smaller than the sum of its proper divisors (2918904).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1279488 is an equidigital number, since it uses as much as digits as its factorization.
1279488 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 52 (or 29 counting only the distinct ones).
The product of its digits is 32256, while the sum is 39.
The square root of 1279488 is about 1131.1445530966. The cubic root of 1279488 is about 108.5622258392.
The spelling of 1279488 in words is "one million, two hundred seventy-nine thousand, four hundred eighty-eight".
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