1328402554 has 8 divisors (see below), whose sum is σ = 1993314708. Its totient is φ = 663964320.

The previous prime is 1328402531. The next prime is 1328402561. The reversal of 1328402554 is 4552048231.

It can be written as a sum of positive squares in 2 ways, for example, as 1326926329 + 1476225 = 36427^2 + 1215^2 .

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

It is an unprimeable number.

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, 111387 + ... + 122734.

Almost surely, 2^1328402554 is an apocalyptic number.

1328402554 is a deficient number, since it is larger than the sum of its proper divisors (664912154).

1328402554 is a wasteful number, since it uses less digits than its factorization.

1328402554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236960.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 1328402554 is about 36447.2571533168. The cubic root of 1328402554 is about 1099.2839841673.

The spelling of 1328402554 in words is "one billion, three hundred twenty-eight million, four hundred two thousand, five hundred fifty-four".