19782252 has 96 divisors (see below), whose sum is σ = 59351040. Its totient is φ = 5581440.

The previous prime is 19782241. The next prime is 19782281. The reversal of 19782252 is 25228791.

19782252 is nontrivially palindromic in base 5.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103477 + ... + 103667.

It is an arithmetic number, because the mean of its divisors is an integer number (618240).

Almost surely, 2^19782252 is an apocalyptic number.

19782252 is a gapful number since it is divisible by the number (12) 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 19782252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29675520).

19782252 is an abundant number, since it is smaller than the sum of its proper divisors (39568788).

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

19782252 is a wasteful number, since it uses less digits than its factorization.

19782252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 340 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 19782252 is about 4447.7243619631. The cubic root of 19782252 is about 270.4530664788.

The spelling of 19782252 in words is "nineteen million, seven hundred eighty-two thousand, two hundred fifty-two".