1291446 has 24 divisors (see below), whose sum is σ = 3013920. Its totient is φ = 397296.

The previous prime is 1291421. The next prime is 1291447. The reversal of 1291446 is 6441921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1291447) 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, 2526 + ... + 2993.

It is an arithmetic number, because the mean of its divisors is an integer number (125580).

2^1291446 is an apocalyptic number.

1291446 is an abundant number, since it is smaller than the sum of its proper divisors (1722474).

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

1291446 is a wasteful number, since it uses less digits than its factorization.

1291446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540 (or 5537 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 1291446 is about 1136.4180568787. The cubic root of 1291446 is about 108.8993825017.

The spelling of 1291446 in words is "one million, two hundred ninety-one thousand, four hundred forty-six".