1285466 has 24 divisors (see below), whose sum is σ = 2417940. Its totient is φ = 508032.

The previous prime is 1285451. The next prime is 1285469. The reversal of 1285466 is 6645821.

It can be written as a sum of positive squares in 2 ways, for example, as 1177225 + 108241 = 1085^2 + 329^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1285469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 770 + ... + 1778.

2^1285466 is an apocalyptic number.

1285466 is a deficient number, since it is larger than the sum of its proper divisors (1132474).

1285466 is a wasteful number, since it uses less digits than its factorization.

1285466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 1031 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1285466 is about 1133.7839300325. The cubic root of 1285466 is about 108.7310373419.

The spelling of 1285466 in words is "one million, two hundred eighty-five thousand, four hundred sixty-six".