1206642 has 8 divisors (see below), whose sum is σ = 2413296. Its totient is φ = 402212.

The previous prime is 1206637. The next prime is 1206679. The reversal of 1206642 is 2466021.

It is a happy number.

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

1206642 is an admirable number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100548 + ... + 100559.

It is an arithmetic number, because the mean of its divisors is an integer number (301662).

2^1206642 is an apocalyptic number.

1206642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1206642 is a wasteful number, since it uses less digits than its factorization.

1206642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201112.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1206642 is about 1098.4725758980. The cubic root of 1206642 is about 106.4615568009.

The spelling of 1206642 in words is "one million, two hundred six thousand, six hundred forty-two".