1448381 has 4 divisors (see below), whose sum is σ = 1580064. Its totient is φ = 1316700.

The previous prime is 1448371. The next prime is 1448387. The reversal of 1448381 is 1838441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1448381 is a prime.

It is a super-2 number, since 2×1448381² = 4195615042322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1448387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65825 + ... + 65846.

It is an arithmetic number, because the mean of its divisors is an integer number (395016).

2^1448381 is an apocalyptic number.

1448381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1448381 is a deficient number, since it is larger than the sum of its proper divisors (131683).

1448381 is a wasteful number, since it uses less digits than its factorization.

1448381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131682.

The product of its digits is 3072, while the sum is 29.

The square root of 1448381 is about 1203.4870169636. The cubic root of 1448381 is about 113.1429782279.

The spelling of 1448381 in words is "one million, four hundred forty-eight thousand, three hundred eighty-one".