1491200 has 54 divisors (see below), whose sum is σ = 3706794. Its totient is φ = 593920.

The previous prime is 1491199. The next prime is 1491227. The reversal of 1491200 is 21941.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 12544 + 1478656 = 112^2 + 1216^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6284 + ... + 6516.

2^1491200 is an apocalyptic number.

1491200 is a gapful number since it is divisible by the number (10) 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 1491200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1853397).

1491200 is an abundant number, since it is smaller than the sum of its proper divisors (2215594).

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

1491200 is an equidigital number, since it uses as much as digits as its factorization.

1491200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1491200 is about 1221.1470017979. The cubic root of 1491200 is about 114.2471298320.

The spelling of 1491200 in words is "one million, four hundred ninety-one thousand, two hundred".