2045868 has 36 divisors (see below), whose sum is σ = 5250840. Its totient is φ = 619520.

The previous prime is 2045851. The next prime is 2045881. The reversal of 2045868 is 8685402.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 748 + ... + 2156.

2^2045868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2045868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2625420).

2045868 is an abundant number, since it is smaller than the sum of its proper divisors (3204972).

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

2045868 is a wasteful number, since it uses less digits than its factorization.

2045868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 2045868 is about 1430.3384214933. The cubic root of 2045868 is about 126.9480019425.

The spelling of 2045868 in words is "two million, forty-five thousand, eight hundred sixty-eight".