1157448 has 32 divisors (see below), whose sum is σ = 2995200. Its totient is φ = 372288.

The previous prime is 1157437. The next prime is 1157449. The reversal of 1157448 is 8447511.

It is not an unprimeable number, because it can be changed into a prime (1157449) 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, 136 + ... + 1527.

It is an arithmetic number, because the mean of its divisors is an integer number (93600).

2^1157448 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 1157448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497600).

1157448 is an abundant number, since it is smaller than the sum of its proper divisors (1837752).

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

1157448 is a wasteful number, since it uses less digits than its factorization.

1157448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1697 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 1157448 is about 1075.8475728466. The cubic root of 1157448 is about 104.9946482533.

The spelling of 1157448 in words is "one million, one hundred fifty-seven thousand, four hundred forty-eight".