19916468 has 24 divisors (see below), whose sum is σ = 40948320. Its totient is φ = 8356320.

The previous prime is 19916461. The next prime is 19916483. The reversal of 19916468 is 86461991.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19916461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16838 + ... + 17981.

It is an arithmetic number, because the mean of its divisors is an integer number (1706180).

Almost surely, 2^19916468 is an apocalyptic number.

It is an amenable number.

19916468 is an abundant number, since it is smaller than the sum of its proper divisors (21031852).

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

19916468 is a wasteful number, since it uses less digits than its factorization.

19916468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34847 (or 34845 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 19916468 is about 4462.7870215819. The cubic root of 19916468 is about 271.0633331007.

The spelling of 19916468 in words is "nineteen million, nine hundred sixteen thousand, four hundred sixty-eight".