19934019 has 24 divisors (see below), whose sum is σ = 34128640. Its totient is φ = 11389896.

The previous prime is 19934003. The next prime is 19934039. The reversal of 19934019 is 91043991.

It is not a de Polignac number, because 19934019 - 2⁴ = 19934003 is a prime.

It is a super-2 number, since 2×19934019² = 794730226984722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (19934039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4159 + ... + 7560.

Almost surely, 2^19934019 is an apocalyptic number.

19934019 is a deficient number, since it is larger than the sum of its proper divisors (14194621).

19934019 is an equidigital number, since it uses as much as digits as its factorization.

19934019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741 (or 11729 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 19934019 is about 4464.7529606911. The cubic root of 19934019 is about 271.1429328198.

The spelling of 19934019 in words is "nineteen million, nine hundred thirty-four thousand, nineteen".