1440866 has 16 divisors (see below), whose sum is σ = 2496960. Its totient is φ = 610800.

The previous prime is 1440853. The next prime is 1440877. The reversal of 1440866 is 6680441.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905 + ... + 1923.

It is an arithmetic number, because the mean of its divisors is an integer number (156060).

2^1440866 is an apocalyptic number.

1440866 is a deficient number, since it is larger than the sum of its proper divisors (1056094).

1440866 is a wasteful number, since it uses less digits than its factorization.

1440866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1440866 is about 1200.3607790994. The cubic root of 1440866 is about 112.9469560738.

The spelling of 1440866 in words is "one million, four hundred forty thousand, eight hundred sixty-six".