1156988448 has 720 divisors, whose sum is σ = 4671862272. Its totient is φ = 273715200.

The previous prime is 1156988429. The next prime is 1156988449. The reversal of 1156988448 is 8448896511.

It is a happy number.

1156988448 is a `hidden beast` number, since 115 + 6 + 9 + 88 + 448 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1156988394 and 1156988403.

It is not an unprimeable number, because it can be changed into a prime (1156988449) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 37322193 + ... + 37322223.

Almost surely, 2^1156988448 is an apocalyptic number.

1156988448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156988448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2335931136).

1156988448 is an abundant number, since it is smaller than the sum of its proper divisors (3514873824).

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

1156988448 is a wasteful number, since it uses less digits than its factorization.

1156988448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 71 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 54.

The square root of 1156988448 is about 34014.5328940440. The cubic root of 1156988448 is about 1049.8075075704.

The spelling of 1156988448 in words is "one billion, one hundred fifty-six million, nine hundred eighty-eight thousand, four hundred forty-eight".