1285746 has 64 divisors (see below), whose sum is σ = 3373056. Its totient is φ = 319440.

The previous prime is 1285741. The next prime is 1285747. The reversal of 1285746 is 6475821.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1285741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55891 + ... + 55913.

It is an arithmetic number, because the mean of its divisors is an integer number (52704).

2^1285746 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1285746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686528).

1285746 is an abundant number, since it is smaller than the sum of its proper divisors (2087310).

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

1285746 is a wasteful number, since it uses less digits than its factorization.

1285746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 46 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 1285746 is about 1133.9074036269. The cubic root of 1285746 is about 108.7389313612.

It can be divided in two parts, 12 and 85746, that added together give a palindrome (85758).

The spelling of 1285746 in words is "one million, two hundred eighty-five thousand, seven hundred forty-six".