19773882 has 96 divisors (see below), whose sum is σ = 48746880. Its totient is φ = 5987520.

The previous prime is 19773869. The next prime is 19773883. The reversal of 19773882 is 28837791.

It is not an unprimeable number, because it can be changed into a prime (19773883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 324132 + ... + 324192.

It is an arithmetic number, because the mean of its divisors is an integer number (507780).

Almost surely, 2^19773882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19773882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24373440).

19773882 is an abundant number, since it is smaller than the sum of its proper divisors (28972998).

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

19773882 is a wasteful number, since it uses less digits than its factorization.

19773882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130 (or 118 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 19773882 is about 4446.7833318029. The cubic root of 19773882 is about 270.4149176118.

The spelling of 19773882 in words is "nineteen million, seven hundred seventy-three thousand, eight hundred eighty-two".