1268980 has 24 divisors (see below), whose sum is σ = 2707488. Its totient is φ = 499488.
The previous prime is 1268963. The next prime is 1269001. The reversal of 1268980 is 898621.
It is a super-2 number, since 2×12689802 = 3220620480800, which contains 22 as substring.
It is a plaindrome in base 13.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 867 + ... + 1813.
It is an arithmetic number, because the mean of its divisors is an integer number (112812).
21268980 is an apocalyptic number.
1268980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
1268980 is an abundant number, since it is smaller than the sum of its proper divisors (1438508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1268980 is a wasteful number, since it uses less digits than its factorization.
1268980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1023 (or 1021 counting only the distinct ones).
The product of its (nonzero) digits is 6912, while the sum is 34.
The square root of 1268980 is about 1126.4901242355. The cubic root of 1268980 is about 108.2642136343.
It can be divided in two parts, 12689 and 80, that added together give a square (12769 = 1132).
The spelling of 1268980 in words is "one million, two hundred sixty-eight thousand, nine hundred eighty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •