3642043 has 4 divisors (see below), whose sum is σ = 3692008. Its totient is φ = 3592080.

The previous prime is 3642031. The next prime is 3642049. The reversal of 3642043 is 3402463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3642043 - 2²¹ = 1544891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3642049) 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, 24873 + ... + 25018.

It is an arithmetic number, because the mean of its divisors is an integer number (923002).

Almost surely, 2^3642043 is an apocalyptic number.

3642043 is a deficient number, since it is larger than the sum of its proper divisors (49965).

3642043 is an equidigital number, since it uses as much as digits as its factorization.

3642043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49964.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 3642043 is about 1908.4137392086. The cubic root of 3642043 is about 153.8562074904.

It can be divided in two parts, 36420 and 43, that added together give a palindrome (36463).

The spelling of 3642043 in words is "three million, six hundred forty-two thousand, forty-three".