3021894 has 32 divisors (see below), whose sum is σ = 6791040. Its totient is φ = 995976.

The previous prime is 3021883. The next prime is 3021913. The reversal of 3021894 is 4981203.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5517 + ... + 6039.

It is an arithmetic number, because the mean of its divisors is an integer number (212220).

Almost surely, 2^3021894 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3021894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3395520).

3021894 is an abundant number, since it is smaller than the sum of its proper divisors (3769146).

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

3021894 is a wasteful number, since it uses less digits than its factorization.

3021894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 3021894 is about 1738.3595715501. The cubic root of 3021894 is about 144.5749582158.

The spelling of 3021894 in words is "three million, twenty-one thousand, eight hundred ninety-four".