1141280448 has 448 divisors, whose sum is σ = 4213555200. Its totient is φ = 263208960.

The previous prime is 1141280443. The next prime is 1141280449. The reversal of 1141280448 is 8440821411.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1141280443) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4775113 + ... + 4775351.

Almost surely, 2^1141280448 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 1141280448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2106777600).

1141280448 is an abundant number, since it is smaller than the sum of its proper divisors (3072274752).

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

1141280448 is a wasteful number, since it uses less digits than its factorization.

1141280448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 1141280448 is about 33782.8425091791. The cubic root of 1141280448 is about 1045.0348951665.

The spelling of 1141280448 in words is "one billion, one hundred forty-one million, two hundred eighty thousand, four hundred forty-eight".