1421448 has 32 divisors (see below), whose sum is σ = 4061760. Its totient is φ = 406080.

The previous prime is 1421437. The next prime is 1421449. The reversal of 1421448 is 8441241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1421449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4063 + ... + 4398.

It is an arithmetic number, because the mean of its divisors is an integer number (126930).

2^1421448 is an apocalyptic number.

It is an amenable number.

1421448 is an abundant number, since it is smaller than the sum of its proper divisors (2640312).

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

1421448 is a wasteful number, since it uses less digits than its factorization.

1421448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8477 (or 8473 counting only the distinct ones).

The product of its digits is 1024, while the sum is 24.

The square root of 1421448 is about 1192.2449412767. The cubic root of 1421448 is about 112.4372786181.

Adding to 1421448 its reverse (8441241), we get a palindrome (9862689).

The spelling of 1421448 in words is "one million, four hundred twenty-one thousand, four hundred forty-eight".