1328376550 has 24 divisors (see below), whose sum is σ = 2473415352. Its totient is φ = 530784000.

The previous prime is 1328376527. The next prime is 1328376593. The reversal of 1328376550 is 556738231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34870 + ... + 62230.

It is an arithmetic number, because the mean of its divisors is an integer number (103058973).

Almost surely, 2^1328376550 is an apocalyptic number.

1328376550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328376550 is a deficient number, since it is larger than the sum of its proper divisors (1145038802).

1328376550 is a wasteful number, since it uses less digits than its factorization.

1328376550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28344 (or 28339 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The square root of 1328376550 is about 36446.9004169079. The cubic root of 1328376550 is about 1099.2768111491.

The spelling of 1328376550 in words is "one billion, three hundred twenty-eight million, three hundred seventy-six thousand, five hundred fifty".