19081098 has 12 divisors (see below), whose sum is σ = 41342418. Its totient is φ = 6360360.

The previous prime is 19081081. The next prime is 19081109. The reversal of 19081098 is 89018091.

It can be written as a sum of positive squares in only one way, i.e., 18429849 + 651249 = 4293^2 + 807^2 .

It is a Curzon number.

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 in 5 ways as a sum of consecutive naturals, for example, 530013 + ... + 530048.

Almost surely, 2^19081098 is an apocalyptic number.

19081098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

19081098 is an abundant number, since it is smaller than the sum of its proper divisors (22261320).

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

19081098 is a wasteful number, since it uses less digits than its factorization.

19081098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060069 (or 1060066 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 19081098 is about 4368.1916166762. The cubic root of 19081098 is about 267.2192786866.

The spelling of 19081098 in words is "nineteen million, eighty-one thousand, ninety-eight".