1974321328 has 30 divisors (see below), whose sum is σ = 4449779556. Its totient is φ = 846137376.

The previous prime is 1974321313. The next prime is 1974321329. The reversal of 1974321328 is 8231234791.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1974321329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1258350 + ... + 1259917.

Almost surely, 2^1974321328 is an apocalyptic number.

It is an amenable number.

1974321328 is an abundant number, since it is smaller than the sum of its proper divisors (2475458228).

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

1974321328 is a wasteful number, since it uses less digits than its factorization.

1974321328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518289 (or 2518276 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 1974321328 is about 44433.3357739434. The cubic root of 1974321328 is about 1254.5056232808.

The spelling of 1974321328 in words is "one billion, nine hundred seventy-four million, three hundred twenty-one thousand, three hundred twenty-eight".