1157388480 has 224 divisors, whose sum is σ = 4128089280. Its totient is φ = 305233920.

The previous prime is 1157388469. The next prime is 1157388481. The reversal of 1157388480 is 848837511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1157388481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 837390 + ... + 838770.

It is an arithmetic number, because the mean of its divisors is an integer number (18428970).

Almost surely, 2^1157388480 is an apocalyptic number.

1157388480 is a gapful number since it is divisible by the number (10) 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 1157388480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2064044640).

1157388480 is an abundant number, since it is smaller than the sum of its proper divisors (2970700800).

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

1157388480 is a wasteful number, since it uses less digits than its factorization.

1157388480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 1157388480 is about 34020.4126959095. The cubic root of 1157388480 is about 1049.9284849252.

The spelling of 1157388480 in words is "one billion, one hundred fifty-seven million, three hundred eighty-eight thousand, four hundred eighty".