19427108 has 6 divisors (see below), whose sum is σ = 33997446. Its totient is φ = 9713552.

The previous prime is 19427081. The next prime is 19427113. The reversal of 19427108 is 80172491.

It can be written as a sum of positive squares in only one way, i.e., 18939904 + 487204 = 4352^2 + 698^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2428385 + ... + 2428392.

It is an arithmetic number, because the mean of its divisors is an integer number (5666241).

Almost surely, 2^19427108 is an apocalyptic number.

It is an amenable number.

19427108 is a deficient number, since it is larger than the sum of its proper divisors (14570338).

19427108 is a wasteful number, since it uses less digits than its factorization.

19427108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856781 (or 4856779 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 19427108 is about 4407.6193120550. The cubic root of 19427108 is about 268.8248330999.

Adding to 19427108 its reverse (80172491), we get a palindrome (99599599).

The spelling of 19427108 in words is "nineteen million, four hundred twenty-seven thousand, one hundred eight".