1448240 has 40 divisors (see below), whose sum is σ = 3453648. Its totient is φ = 564480.

The previous prime is 1448221. The next prime is 1448303. The reversal of 1448240 is 428441.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3230 + ... + 3650.

2^1448240 is an apocalyptic number.

1448240 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 1448240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1726824).

1448240 is an abundant number, since it is smaller than the sum of its proper divisors (2005408).

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

1448240 is a wasteful number, since it uses less digits than its factorization.

1448240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1448240 is about 1203.4284357618. The cubic root of 1448240 is about 113.1393066163.

The spelling of 1448240 in words is "one million, four hundred forty-eight thousand, two hundred forty".