1128252480 has 112 divisors (see below), whose sum is σ = 3632874624. Its totient is φ = 296611840.

The previous prime is 1128252467. The next prime is 1128252527. The reversal of 1128252480 is 842528211.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 59884 + ... + 76436.

Almost surely, 2^1128252480 is an apocalyptic number.

1128252480 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 1128252480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1816437312).

1128252480 is an abundant number, since it is smaller than the sum of its proper divisors (2504622144).

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

1128252480 is a wasteful number, since it uses less digits than its factorization.

1128252480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16644 (or 16634 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 1128252480 is about 33589.4697784886. The cubic root of 1128252480 is about 1041.0432332524.

The spelling of 1128252480 in words is "one billion, one hundred twenty-eight million, two hundred fifty-two thousand, four hundred eighty".