1971932364 has 72 divisors (see below), whose sum is σ = 5184925200. Its totient is φ = 655314624.

The previous prime is 1971932359. The next prime is 1971932381. The reversal of 1971932364 is 4632391791.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336322 + ... + 342134.

It is an arithmetic number, because the mean of its divisors is an integer number (72012850).

Almost surely, 2^1971932364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1971932364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2592462600).

1971932364 is an abundant number, since it is smaller than the sum of its proper divisors (3212992836).

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

1971932364 is a wasteful number, since it uses less digits than its factorization.

1971932364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181 (or 6167 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1971932364 is about 44406.4450727594. The cubic root of 1971932364 is about 1253.9994276685. Note that the first 3 decimals are identical.

The spelling of 1971932364 in words is "one billion, nine hundred seventy-one million, nine hundred thirty-two thousand, three hundred sixty-four".