19381036 has 6 divisors (see below), whose sum is σ = 33916820. Its totient is φ = 9690516.

The previous prime is 19381031. The next prime is 19381039. The reversal of 19381036 is 63018391.

It is a junction number, because it is equal to n+sod(n) for n = 19380989 and 19381007.

It is not an unprimeable number, because it can be changed into a prime (19381031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2422626 + ... + 2422633.

Almost surely, 2^19381036 is an apocalyptic number.

It is an amenable number.

19381036 is a deficient number, since it is larger than the sum of its proper divisors (14535784).

19381036 is a wasteful number, since it uses less digits than its factorization.

19381036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4845263 (or 4845261 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 19381036 is about 4402.3898055488. The cubic root of 19381036 is about 268.6121560280.

The spelling of 19381036 in words is "nineteen million, three hundred eighty-one thousand, thirty-six".