19888052 has 6 divisors (see below), whose sum is σ = 34804098. Its totient is φ = 9944024.

The previous prime is 19888021. The next prime is 19888061. The reversal of 19888052 is 25088891.

It can be written as a sum of positive squares in only one way, i.e., 18438436 + 1449616 = 4294^2 + 1204^2 .

It is a super-2 number, since 2×19888052² = 791069224709408, which contains 22 as substring.

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, 2486003 + ... + 2486010.

It is an arithmetic number, because the mean of its divisors is an integer number (5800683).

Almost surely, 2^19888052 is an apocalyptic number.

It is an amenable number.

19888052 is a deficient number, since it is larger than the sum of its proper divisors (14916046).

19888052 is a wasteful number, since it uses less digits than its factorization.

19888052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972017 (or 4972015 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The square root of 19888052 is about 4459.6022244142. The cubic root of 19888052 is about 270.9343577254.

It can be divided in two parts, 1988805 and 2, that multiplied together give a triangular number (3977610 = T₂₈₂₀).

The spelling of 19888052 in words is "nineteen million, eight hundred eighty-eight thousand, fifty-two".