19393914 has 8 divisors (see below), whose sum is σ = 38787840. Its totient is φ = 6464636.

The previous prime is 19393909. The next prime is 19393921. The reversal of 19393914 is 41939391.

It is a sphenic number, since it is the product of 3 distinct primes.

19393914 is an admirable number.

It is a super-4 number, since 4×19393914⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1616154 + ... + 1616165.

It is an arithmetic number, because the mean of its divisors is an integer number (4848480).

Almost surely, 2^19393914 is an apocalyptic number.

19393914 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19393914 is a wasteful number, since it uses less digits than its factorization.

19393914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232324.

The product of its digits is 26244, while the sum is 39.

The square root of 19393914 is about 4403.8521773556. The cubic root of 19393914 is about 268.6716372215.

The spelling of 19393914 in words is "nineteen million, three hundred ninety-three thousand, nine hundred fourteen".