1984279056 has 40 divisors (see below), whose sum is σ = 5128269984. Its totient is φ = 661140480.

The previous prime is 1984279039. The next prime is 1984279057. The reversal of 1984279056 is 6509724891.

It is a super-2 number, since 2×1984279056² = 7874726744160502272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1984279057) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 123520 + ... + 138656.

Almost surely, 2^1984279056 is an apocalyptic number.

1984279056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1984279056 is an abundant number, since it is smaller than the sum of its proper divisors (3143990928).

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

1984279056 is a wasteful number, since it uses less digits than its factorization.

1984279056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17879 (or 17873 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 1984279056 is about 44545.2472885717. The cubic root of 1984279056 is about 1256.6111709043.

The spelling of 1984279056 in words is "one billion, nine hundred eighty-four million, two hundred seventy-nine thousand, fifty-six".