1972277284 has 12 divisors (see below), whose sum is σ = 3535668108. Its totient is φ = 962086400.

The previous prime is 1972277261. The next prime is 1972277303. The reversal of 1972277284 is 4827722791.

It can be written as a sum of positive squares in 2 ways, for example, as 627001600 + 1345275684 = 25040^2 + 36678^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6012877 + ... + 6013204.

It is an arithmetic number, because the mean of its divisors is an integer number (294639009).

Almost surely, 2^1972277284 is an apocalyptic number.

It is an amenable number.

1972277284 is a deficient number, since it is larger than the sum of its proper divisors (1563390824).

1972277284 is a wasteful number, since it uses less digits than its factorization.

1972277284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026126 (or 12026124 counting only the distinct ones).

The product of its digits is 790272, while the sum is 49.

The square root of 1972277284 is about 44410.3285734299. The cubic root of 1972277284 is about 1254.0725377262.

The spelling of 1972277284 in words is "one billion, nine hundred seventy-two million, two hundred seventy-seven thousand, two hundred eighty-four".