2142642 has 8 divisors (see below), whose sum is σ = 4285296. Its totient is φ = 714212.

The previous prime is 2142641. The next prime is 2142643. The reversal of 2142642 is 2462412.

It is an interprime number because it is at equal distance from previous prime (2142641) and next prime (2142643).

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

2142642 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2142641) 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, 178548 + ... + 178559.

It is an arithmetic number, because the mean of its divisors is an integer number (535662).

2^2142642 is an apocalyptic number.

2142642 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.

2142642 is a wasteful number, since it uses less digits than its factorization.

2142642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357112.

The product of its digits is 768, while the sum is 21.

The square root of 2142642 is about 1463.7766223027. The cubic root of 2142642 is about 128.9188841648.

The spelling of 2142642 in words is "two million, one hundred forty-two thousand, six hundred forty-two".