19913354 has 16 divisors (see below), whose sum is σ = 31344192. Its totient is φ = 9470208.

The previous prime is 19913353. The next prime is 19913393. The reversal of 19913354 is 45331991.

It is not an unprimeable number, because it can be changed into a prime (19913353) 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, 7757 + ... + 9999.

It is an arithmetic number, because the mean of its divisors is an integer number (1959012).

Almost surely, 2^19913354 is an apocalyptic number.

19913354 is a deficient number, since it is larger than the sum of its proper divisors (11430838).

19913354 is a wasteful number, since it uses less digits than its factorization.

19913354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461.

The product of its digits is 14580, while the sum is 35.

The square root of 19913354 is about 4462.4381228203. The cubic root of 19913354 is about 271.0492051737.

The spelling of 19913354 in words is "nineteen million, nine hundred thirteen thousand, three hundred fifty-four".