1328560974 has 32 divisors (see below), whose sum is σ = 3179463840. Its totient is φ = 408787776.

The previous prime is 1328560957. The next prime is 1328560979. The reversal of 1328560974 is 4790658231.

1328560974 is a `hidden beast` number, since 1 + 32 + 8 + 5 + 609 + 7 + 4 = 666.

1328560974 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

1328560974 is strictly pandigital in base 10.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328560979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945567 + ... + 946970.

It is an arithmetic number, because the mean of its divisors is an integer number (99358245).

It is a 1-persistent number, because it is pandigital, but 2⋅1328560974 = 2657121948 is not.

Almost surely, 2^1328560974 is an apocalyptic number.

1328560974 is an abundant number, since it is smaller than the sum of its proper divisors (1850902866).

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

1328560974 is a wasteful number, since it uses less digits than its factorization.

1328560974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892561 (or 1892555 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1328560974 is about 36449.4303659193. The cubic root of 1328560974 is about 1099.3276811742.

The spelling of 1328560974 in words is "one billion, three hundred twenty-eight million, five hundred sixty thousand, nine hundred seventy-four".