1343642 has 12 divisors (see below), whose sum is σ = 2128266. Its totient is φ = 636120.

The previous prime is 1343627. The next prime is 1343651. The reversal of 1343642 is 2463431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1343281 + 361 = 1159^2 + 19^2 .

It is a super-6 number, since 6×1343642⁶ (a number of 38 digits) contains 666666 as substring.

It is a nialpdrome in base 6.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 209 + ... + 1652.

2^1343642 is an apocalyptic number.

1343642 is a deficient number, since it is larger than the sum of its proper divisors (784624).

1343642 is a wasteful number, since it uses less digits than its factorization.

1343642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901 (or 1882 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 1343642 is about 1159.1557272429. The cubic root of 1343642 is about 110.3471676250.

The spelling of 1343642 in words is "one million, three hundred forty-three thousand, six hundred forty-two".