19621414 has 16 divisors (see below), whose sum is σ = 31215600. Its totient is φ = 9224064.

The previous prime is 19621403. The next prime is 19621447. The reversal of 19621414 is 41412691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3322 + ... + 7090.

It is an arithmetic number, because the mean of its divisors is an integer number (1950975).

Almost surely, 2^19621414 is an apocalyptic number.

19621414 is a deficient number, since it is larger than the sum of its proper divisors (11594186).

19621414 is a wasteful number, since it uses less digits than its factorization.

19621414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3927.

The product of its digits is 1728, while the sum is 28.

The square root of 19621414 is about 4429.6065288014. The cubic root of 19621414 is about 269.7181054235.

The spelling of 19621414 in words is "nineteen million, six hundred twenty-one thousand, four hundred fourteen".