2043642 has 32 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 638000.

The previous prime is 2043637. The next prime is 2043647. The reversal of 2043642 is 2463402.

It is an interprime number because it is at equal distance from previous prime (2043637) and next prime (2043647).

It is not an unprimeable number, because it can be changed into a prime (2043647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8017 + ... + 8267.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^2043642 is an apocalyptic number.

2043642 is an abundant number, since it is smaller than the sum of its proper divisors (2310918).

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

2043642 is a wasteful number, since it uses less digits than its factorization.

2043642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2043642 is about 1429.5600721900. The cubic root of 2043642 is about 126.9019434475.

The spelling of 2043642 in words is "two million, forty-three thousand, six hundred forty-two".