1491812 has 12 divisors (see below), whose sum is σ = 2983680. Its totient is φ = 639336.

The previous prime is 1491797. The next prime is 1491821. The reversal of 1491812 is 2181941.

1491812 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26612 + ... + 26667.

It is an arithmetic number, because the mean of its divisors is an integer number (248640).

2^1491812 is an apocalyptic number.

It is an amenable number.

1491812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1491812 is a wasteful number, since it uses less digits than its factorization.

1491812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53290 (or 53288 counting only the distinct ones).

The product of its digits is 576, while the sum is 26.

The square root of 1491812 is about 1221.3975601744. The cubic root of 1491812 is about 114.2627569959.

The spelling of 1491812 in words is "one million, four hundred ninety-one thousand, eight hundred twelve".