19230638248 has 8 divisors (see below), whose sum is σ = 36057446730. Its totient is φ = 9615319120.

The previous prime is 19230638233. The next prime is 19230638249. The reversal of 19230638248 is 84283603291.

It can be written as a sum of positive squares in only one way, i.e., 10072531044 + 9158107204 = 100362^2 + 95698^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 19230638198 and 19230638207.

It is not an unprimeable number, because it can be changed into a prime (19230638249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201914883 + ... + 1201914898.

Almost surely, 2^19230638248 is an apocalyptic number.

It is an amenable number.

19230638248 is a deficient number, since it is larger than the sum of its proper divisors (16826808482).

19230638248 is a wasteful number, since it uses less digits than its factorization.

19230638248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403829787 (or 2403829783 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 46.

The spelling of 19230638248 in words is "nineteen billion, two hundred thirty million, six hundred thirty-eight thousand, two hundred forty-eight".