19498068 has 18 divisors (see below), whose sum is σ = 49286874. Its totient is φ = 6499344.

The previous prime is 19498057. The next prime is 19498079. The reversal of 19498068 is 86089491.

It is an interprime number because it is at equal distance from previous prime (19498057) and next prime (19498079).

It can be written as a sum of positive squares in only one way, i.e., 14884164 + 4613904 = 3858^2 + 2148^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270771 + ... + 270842.

Almost surely, 2^19498068 is an apocalyptic number.

19498068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19498068 is an abundant number, since it is smaller than the sum of its proper divisors (29788806).

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

19498068 is a wasteful number, since it uses less digits than its factorization.

19498068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541623 (or 541618 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 19498068 is about 4415.6616718222. The cubic root of 19498068 is about 269.1517411084.

The spelling of 19498068 in words is "nineteen million, four hundred ninety-eight thousand, sixty-eight".