19879056 has 60 divisors (see below), whose sum is σ = 56123392. Its totient is φ = 6568128.

The previous prime is 19879051. The next prime is 19879087. The reversal of 19879056 is 65097891.

It is a super-2 number, since 2×19879056² = 790353734902272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19879051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17745 + ... + 18831.

Almost surely, 2^19879056 is an apocalyptic number.

19879056 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 19879056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28061696).

19879056 is an abundant number, since it is smaller than the sum of its proper divisors (36244336).

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

19879056 is a wasteful number, since it uses less digits than its factorization.

19879056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228 (or 1219 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 19879056 is about 4458.5935001971. The cubic root of 19879056 is about 270.8935008152.

The spelling of 19879056 in words is "nineteen million, eight hundred seventy-nine thousand, fifty-six".