2061642 has 16 divisors (see below), whose sum is σ = 4498272. Its totient is φ = 624720.

The previous prime is 2061629. The next prime is 2061649. The reversal of 2061642 is 2461602.

It is a happy number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2061649) 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 7 ways as a sum of consecutive naturals, for example, 15553 + ... + 15684.

It is an arithmetic number, because the mean of its divisors is an integer number (281142).

2^2061642 is an apocalyptic number.

2061642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2061642 is an abundant number, since it is smaller than the sum of its proper divisors (2436630).

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

2061642 is a wasteful number, since it uses less digits than its factorization.

2061642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31253.

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

The square root of 2061642 is about 1435.8419133038. The cubic root of 2061642 is about 127.2734307630.

The spelling of 2061642 in words is "two million, sixty-one thousand, six hundred forty-two".