1128452256 has 192 divisors, whose sum is σ = 3532636800. Its totient is φ = 349360128.

The previous prime is 1128452249. The next prime is 1128452287. The reversal of 1128452256 is 6522548211.

1128452256 is a `hidden beast` number, since 1 + 1 + 2 + 84 + 522 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1128452256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 869400 + ... + 870696.

It is an arithmetic number, because the mean of its divisors is an integer number (18399150).

Almost surely, 2^1128452256 is an apocalyptic number.

1128452256 is a gapful number since it is divisible by the number (16) 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 1128452256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1766318400).

1128452256 is an abundant number, since it is smaller than the sum of its proper divisors (2404184544).

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

1128452256 is a wasteful number, since it uses less digits than its factorization.

1128452256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388 (or 1374 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 1128452256 is about 33592.4434359872. The cubic root of 1128452256 is about 1041.1046743402.

The spelling of 1128452256 in words is "one billion, one hundred twenty-eight million, four hundred fifty-two thousand, two hundred fifty-six".