1343980 has 48 divisors (see below), whose sum is σ = 3175200. Its totient is φ = 473600.

The previous prime is 1343971. The next prime is 1343983. The reversal of 1343980 is 893431.

1343980 = T₁₉₃ + T₁₉₄ + ... + T₂₄₇.

1343980 is a nontrivial binomial coefficient, being equal to C(1640, 2).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1343983) 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, 8946 + ... + 9094.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2^1343980 is an apocalyptic number.

1343980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1343980 is the 1639-th triangular number and also the 820-th hexagonal number.

1343980 is the 547-th centered nonagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1343980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1587600).

1343980 is an abundant number, since it is smaller than the sum of its proper divisors (1831220).

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

1343980 is a wasteful number, since it uses less digits than its factorization.

1343980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1343980 is about 1159.3015138436. The cubic root of 1343980 is about 110.3564196469.

It can be divided in two parts, 134 and 3980, that added together give a palindrome (4114).

The spelling of 1343980 in words is "one million, three hundred forty-three thousand, nine hundred eighty".