1438448 has 30 divisors (see below), whose sum is σ = 3067512. Its totient is φ = 652960.

The previous prime is 1438447. The next prime is 1438457. The reversal of 1438448 is 8448341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1565 + ... + 2307.

2^1438448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1438448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1533756).

1438448 is an abundant number, since it is smaller than the sum of its proper divisors (1629064).

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

1438448 is a wasteful number, since it uses less digits than its factorization.

1438448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 756 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 1438448 is about 1199.3531589986. The cubic root of 1438448 is about 112.8837397734.

The spelling of 1438448 in words is "one million, four hundred thirty-eight thousand, four hundred forty-eight".