1491456 has 40 divisors (see below), whose sum is σ = 3977424. Its totient is φ = 496640.

The previous prime is 1491449. The next prime is 1491491. The reversal of 1491456 is 6541941.

It is a happy number.

It is a nialpdrome in base 8.

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, 1051 + ... + 2021.

2^1491456 is an apocalyptic number.

1491456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1491456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1988712).

1491456 is an abundant number, since it is smaller than the sum of its proper divisors (2485968).

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

1491456 is an frugal number, since it uses more digits than its factorization.

1491456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 976 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1491456 is about 1221.2518167847. The cubic root of 1491456 is about 114.2536672049.

The spelling of 1491456 in words is "one million, four hundred ninety-one thousand, four hundred fifty-six".