1344981 has 16 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 798720.
The previous prime is 1344979. The next prime is 1345009. The reversal of 1344981 is 1894431.
1344981 = 642 + 652 + ... + 1622.
It is a happy number.
It is not a de Polignac number, because 1344981 - 21 = 1344979 is a prime.
It is a super-2 number, since 2×13449812 = 3617947780722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1344901) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365 + ... + 2133.
It is an arithmetic number, because the mean of its divisors is an integer number (124740).
21344981 is an apocalyptic number.
1344981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
1344981 is a deficient number, since it is larger than the sum of its proper divisors (650859).
1344981 is a wasteful number, since it uses less digits than its factorization.
1344981 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 836.
The product of its digits is 3456, while the sum is 30.
The square root of 1344981 is about 1159.7331589637. The cubic root of 1344981 is about 110.3838107693.
It can be divided in two parts, 13449 and 81, that added together give a triangular number (13530 = T164).
The spelling of 1344981 in words is "one million, three hundred forty-four thousand, nine hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •