19881452 has 12 divisors (see below), whose sum is σ = 34847736. Its totient is φ = 9924960.

The previous prime is 19881451. The next prime is 19881457. The reversal of 19881452 is 25418891.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19881451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833 + ... + 6360.

It is an arithmetic number, because the mean of its divisors is an integer number (2903978).

Almost surely, 2^19881452 is an apocalyptic number.

It is an amenable number.

19881452 is a deficient number, since it is larger than the sum of its proper divisors (14966284).

19881452 is a wasteful number, since it uses less digits than its factorization.

19881452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888 (or 7886 counting only the distinct ones).

The product of its digits is 23040, while the sum is 38.

The square root of 19881452 is about 4458.8621867019. The cubic root of 19881452 is about 270.9043838731.

The spelling of 19881452 in words is "nineteen million, eight hundred eighty-one thousand, four hundred fifty-two".