1142448 has 20 divisors (see below), whose sum is σ = 2951448. Its totient is φ = 380800.

The previous prime is 1142431. The next prime is 1142473. The reversal of 1142448 is 8442411.

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11853 + ... + 11948.

2^1142448 is an apocalyptic number.

It is an amenable number.

1142448 is an abundant number, since it is smaller than the sum of its proper divisors (1809000).

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

1142448 is a wasteful number, since it uses less digits than its factorization.

1142448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23812 (or 23806 counting only the distinct ones).

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

The square root of 1142448 is about 1068.8535914708. The cubic root of 1142448 is about 104.5391137358.

Adding to 1142448 its reverse (8442411), we get a palindrome (9584859).

The spelling of 1142448 in words is "one million, one hundred forty-two thousand, four hundred forty-eight".