1129478398 has 8 divisors (see below), whose sum is σ = 1697105592. Its totient is φ = 563776536.

The previous prime is 1129478393. The next prime is 1129478417. The reversal of 1129478398 is 8938749211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129478393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479865 + ... + 482212.

It is an arithmetic number, because the mean of its divisors is an integer number (212138199).

Almost surely, 2^1129478398 is an apocalyptic number.

1129478398 is a deficient number, since it is larger than the sum of its proper divisors (567627194).

1129478398 is an equidigital number, since it uses as much as digits as its factorization.

1129478398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962666.

The product of its digits is 870912, while the sum is 52.

The square root of 1129478398 is about 33607.7133705940. The cubic root of 1129478398 is about 1041.4201499750.

The spelling of 1129478398 in words is "one billion, one hundred twenty-nine million, four hundred seventy-eight thousand, three hundred ninety-eight".