1328431098 has 8 divisors (see below), whose sum is σ = 2656862208. Its totient is φ = 442810364.

The previous prime is 1328431063. The next prime is 1328431103. The reversal of 1328431098 is 8901348231.

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

1328431098 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110702586 + ... + 110702597.

It is an arithmetic number, because the mean of its divisors is an integer number (332107776).

Almost surely, 2^1328431098 is an apocalyptic number.

1328431098 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1328431098 is a wasteful number, since it uses less digits than its factorization.

1328431098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221405188.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1328431098 is about 36447.6487307481. The cubic root of 1328431098 is about 1099.2918577187.

The spelling of 1328431098 in words is "one billion, three hundred twenty-eight million, four hundred thirty-one thousand, ninety-eight".