2042658 has 32 divisors (see below), whose sum is σ = 4605120. Its totient is φ = 679428.

The previous prime is 2042657. The next prime is 2042681. The reversal of 2042658 is 8562402.

2042658 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 658 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2042657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4141 + ... + 4607.

It is an arithmetic number, because the mean of its divisors is an integer number (143910).

2^2042658 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2042658, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2302560).

2042658 is an abundant number, since it is smaller than the sum of its proper divisors (2562462).

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

2042658 is an frugal number, since it uses more digits than its factorization.

2042658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2042658 is about 1429.2158689295. The cubic root of 2042658 is about 126.8815726978.

The spelling of 2042658 in words is "two million, forty-two thousand, six hundred fifty-eight".