1971580468 has 24 divisors (see below), whose sum is σ = 4053460320. Its totient is φ = 827236320.

The previous prime is 1971580441. The next prime is 1971580477. The reversal of 1971580468 is 8640851791.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1722838 + ... + 1723981.

It is an arithmetic number, because the mean of its divisors is an integer number (168894180).

Almost surely, 2^1971580468 is an apocalyptic number.

It is an amenable number.

1971580468 is an abundant number, since it is smaller than the sum of its proper divisors (2081879852).

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

1971580468 is a wasteful number, since it uses less digits than its factorization.

1971580468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446847 (or 3446845 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 1971580468 is about 44402.4826783368. The cubic root of 1971580468 is about 1253.9248301752.

The spelling of 1971580468 in words is "one billion, nine hundred seventy-one million, five hundred eighty thousand, four hundred sixty-eight".