1355642 has 8 divisors (see below), whose sum is σ = 2038932. Its totient is φ = 676000.

The previous prime is 1355623. The next prime is 1355647. The reversal of 1355642 is 2465531.

It can be written as a sum of positive squares in 2 ways, for example, as 1062961 + 292681 = 1031^2 + 541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1355647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392 + ... + 1692.

2^1355642 is an apocalyptic number.

1355642 is a deficient number, since it is larger than the sum of its proper divisors (683290).

1355642 is a wasteful number, since it uses less digits than its factorization.

1355642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824.

The product of its digits is 3600, while the sum is 26.

The square root of 1355642 is about 1164.3204026384. The cubic root of 1355642 is about 110.6746961965.

It can be divided in two parts, 13 and 55642, that added together give a palindrome (55655).

The spelling of 1355642 in words is "one million, three hundred fifty-five thousand, six hundred forty-two".