19816052 has 6 divisors (see below), whose sum is σ = 34678098. Its totient is φ = 9908024.

The previous prime is 19816051. The next prime is 19816081. The reversal of 19816052 is 25061891.

It can be written as a sum of positive squares in only one way, i.e., 19589476 + 226576 = 4426^2 + 476^2 .

It is a super-3 number, since 3×19816052³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19816051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2477003 + ... + 2477010.

It is an arithmetic number, because the mean of its divisors is an integer number (5779683).

Almost surely, 2^19816052 is an apocalyptic number.

It is an amenable number.

19816052 is a deficient number, since it is larger than the sum of its proper divisors (14862046).

19816052 is a wasteful number, since it uses less digits than its factorization.

19816052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4954017 (or 4954015 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 19816052 is about 4451.5224362009. The cubic root of 19816052 is about 270.6070110734.

The spelling of 19816052 in words is "nineteen million, eight hundred sixteen thousand, fifty-two".