19817052 has 24 divisors (see below), whose sum is σ = 47490576. Its totient is φ = 6427008.

The previous prime is 19816999. The next prime is 19817107. The reversal of 19817052 is 25071891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21873 + ... + 22760.

It is an arithmetic number, because the mean of its divisors is an integer number (1978774).

Almost surely, 2^19817052 is an apocalyptic number.

19817052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19817052 is an abundant number, since it is smaller than the sum of its proper divisors (27673524).

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

19817052 is a wasteful number, since it uses less digits than its factorization.

19817052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44677 (or 44675 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 19817052 is about 4451.6347559071. The cubic root of 19817052 is about 270.6115629801.

The spelling of 19817052 in words is "nineteen million, eight hundred seventeen thousand, fifty-two".