1129404880 has 40 divisors (see below), whose sum is σ = 2740038912. Its totient is φ = 432119424.

The previous prime is 1129404869. The next prime is 1129404907. The reversal of 1129404880 is 884049211.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 305064 + ... + 308743.

Almost surely, 2^1129404880 is an apocalyptic number.

1129404880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1129404880 is an abundant number, since it is smaller than the sum of its proper divisors (1610634032).

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

1129404880 is a wasteful number, since it uses less digits than its factorization.

1129404880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613843 (or 613837 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 1129404880 is about 33606.6195860280. The cubic root of 1129404880 is about 1041.3975540617.

The spelling of 1129404880 in words is "one billion, one hundred twenty-nine million, four hundred four thousand, eight hundred eighty".