1979320896 has 252 divisors, whose sum is σ = 6948860880. Its totient is φ = 535610880.

The previous prime is 1979320873. The next prime is 1979320921. The reversal of 1979320896 is 6980239791.

It is a tau number, because it is divible by the number of its divisors (252).

It is a super-2 number, since 2×1979320896² = 7835422418684485632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 534411 + ... + 538101.

Almost surely, 2^1979320896 is an apocalyptic number.

1979320896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1979320896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3474430440).

1979320896 is an abundant number, since it is smaller than the sum of its proper divisors (4969539984).

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

1979320896 is a wasteful number, since it uses less digits than its factorization.

1979320896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742 (or 3722 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1979320896 is about 44489.5594044266. The cubic root of 1979320896 is about 1255.5636576442.

The spelling of 1979320896 in words is "one billion, nine hundred seventy-nine million, three hundred twenty thousand, eight hundred ninety-six".