1974612328 has 32 divisors (see below), whose sum is σ = 3989802600. Its totient is φ = 910764288.

The previous prime is 1974612319. The next prime is 1974612329. The reversal of 1974612328 is 8232164791.

It can be written as a sum of positive squares in 4 ways, for example, as 1967632164 + 6980164 = 44358^2 + 2642^2 .

It is not an unprimeable number, because it can be changed into a prime (1974612329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180750 + ... + 191362.

Almost surely, 2^1974612328 is an apocalyptic number.

It is an amenable number.

1974612328 is an abundant number, since it is smaller than the sum of its proper divisors (2015190272).

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

1974612328 is a wasteful number, since it uses less digits than its factorization.

1974612328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12421 (or 12417 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1974612328 is about 44436.6102217530. The cubic root of 1974612328 is about 1254.5672551264.

The spelling of 1974612328 in words is "one billion, nine hundred seventy-four million, six hundred twelve thousand, three hundred twenty-eight".