1327458990 has 128 divisors (see below), whose sum is σ = 3844495872. Its totient is φ = 288990720.

The previous prime is 1327458973. The next prime is 1327459033. The reversal of 1327458990 is 998547231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 154549 + ... + 162911.

It is an arithmetic number, because the mean of its divisors is an integer number (30035124).

Almost surely, 2^1327458990 is an apocalyptic number.

1327458990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1327458990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1922247936).

1327458990 is an abundant number, since it is smaller than the sum of its proper divisors (2517036882).

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

1327458990 is a wasteful number, since it uses less digits than its factorization.

1327458990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8434.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 1327458990 is about 36434.3106151331. The cubic root of 1327458990 is about 1099.0236488064.

The spelling of 1327458990 in words is "one billion, three hundred twenty-seven million, four hundred fifty-eight thousand, nine hundred ninety".