19881052 has 6 divisors (see below), whose sum is σ = 34791848. Its totient is φ = 9940524.

The previous prime is 19881019. The next prime is 19881077. The reversal of 19881052 is 25018891.

It is a junction number, because it is equal to n+sod(n) for n = 19880999 and 19881017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2485128 + ... + 2485135.

Almost surely, 2^19881052 is an apocalyptic number.

It is an amenable number.

19881052 is a deficient number, since it is larger than the sum of its proper divisors (14910796).

19881052 is a wasteful number, since it uses less digits than its factorization.

19881052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970267 (or 4970265 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 19881052 is about 4458.8173319839. The cubic root of 19881052 is about 270.9025670628.

The spelling of 19881052 in words is "nineteen million, eight hundred eighty-one thousand, fifty-two".