1128723252 has 48 divisors (see below), whose sum is σ = 2751060480. Its totient is φ = 359507808.

The previous prime is 1128723247. The next prime is 1128723269. The reversal of 1128723252 is 2523278211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 401283 + ... + 404085.

It is an arithmetic number, because the mean of its divisors is an integer number (57313760).

Almost surely, 2^1128723252 is an apocalyptic number.

1128723252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1128723252 is an abundant number, since it is smaller than the sum of its proper divisors (1622337228).

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

1128723252 is a wasteful number, since it uses less digits than its factorization.

1128723252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4292 (or 4290 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 1128723252 is about 33596.4767795672. The cubic root of 1128723252 is about 1041.1880075426.

The spelling of 1128723252 in words is "one billion, one hundred twenty-eight million, seven hundred twenty-three thousand, two hundred fifty-two".