2043646 has 8 divisors (see below), whose sum is σ = 3344184. Its totient is φ = 928920.

The previous prime is 2043637. The next prime is 2043647. The reversal of 2043646 is 6463402.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2043646.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 46425 + ... + 46468.

It is an arithmetic number, because the mean of its divisors is an integer number (418023).

2^2043646 is an apocalyptic number.

2043646 is a deficient number, since it is larger than the sum of its proper divisors (1300538).

2043646 is a wasteful number, since it uses less digits than its factorization.

2043646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92906.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 2043646 is about 1429.5614712212. The cubic root of 2043646 is about 126.9020262421.

The spelling of 2043646 in words is "two million, forty-three thousand, six hundred forty-six".