1129445208 has 40 divisors (see below), whose sum is σ = 3163494180. Its totient is φ = 376481520.

The previous prime is 1129445183. The next prime is 1129445221. The reversal of 1129445208 is 8025449211.

1129445208 is a `hidden beast` number, since 1 + 1 + 2 + 9 + 445 + 208 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 870838 + ... + 872133.

Almost surely, 2^1129445208 is an apocalyptic number.

1129445208 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1129445208 is an abundant number, since it is smaller than the sum of its proper divisors (2034048972).

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

1129445208 is a wasteful number, since it uses less digits than its factorization.

1129445208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742989 (or 1742976 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1129445208 is about 33607.2195815125. The cubic root of 1129445208 is about 1041.4099490795.

The spelling of 1129445208 in words is "one billion, one hundred twenty-nine million, four hundred forty-five thousand, two hundred eight".