1128906250 has 60 divisors (see below), whose sum is σ = 2248534926. Its totient is φ = 425000000.

The previous prime is 1128906241. The next prime is 1128906269. The reversal of 1128906250 is 526098211.

It can be written as a sum of positive squares in 15 ways, for example, as 620358649 + 508547601 = 24907^2 + 22551^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 66406242 + ... + 66406258.

Almost surely, 2^1128906250 is an apocalyptic number.

1128906250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128906250 is a deficient number, since it is larger than the sum of its proper divisors (1119628676).

1128906250 is an frugal number, since it uses more digits than its factorization.

1128906250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 24 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1128906250 is about 33599.2001392890. The cubic root of 1128906250 is about 1041.2442731880.

The spelling of 1128906250 in words is "one billion, one hundred twenty-eight million, nine hundred six thousand, two hundred fifty".