2401866 has 32 divisors (see below), whose sum is σ = 5620800. Its totient is φ = 758160.

The previous prime is 2401807. The next prime is 2401871. The reversal of 2401866 is 6681042.

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

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, 145 + ... + 2196.

It is an arithmetic number, because the mean of its divisors is an integer number (175650).

2^2401866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2401866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2810400).

2401866 is an abundant number, since it is smaller than the sum of its proper divisors (3218934).

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

2401866 is a wasteful number, since it uses less digits than its factorization.

2401866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2371 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2401866 is about 1549.7954703767. The cubic root of 2401866 is about 133.9212799688.

The spelling of 2401866 in words is "two million, four hundred one thousand, eight hundred sixty-six".