2356642 has 8 divisors (see below), whose sum is σ = 3742956. Its totient is φ = 1108992.

The previous prime is 2356621. The next prime is 2356643. The reversal of 2356642 is 2466532.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1825201 + 531441 = 1351^2 + 729^2 .

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

It is a d-powerful number, because it can be written as 2¹⁴ + 3⁸ + 5⁸ + 6⁴ + 6⁸ + 4² + 2¹⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 2356642.

It is not an unprimeable number, because it can be changed into a prime (2356643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34623 + ... + 34690.

2^2356642 is an apocalyptic number.

2356642 is a deficient number, since it is larger than the sum of its proper divisors (1386314).

2356642 is a wasteful number, since it uses less digits than its factorization.

2356642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69332.

The product of its digits is 8640, while the sum is 28.

The square root of 2356642 is about 1535.1358246097. The cubic root of 2356642 is about 133.0754278462.

It can be divided in two parts, 23 and 56642, that added together give a palindrome (56665).

The spelling of 2356642 in words is "two million, three hundred fifty-six thousand, six hundred forty-two".