19861348 has 12 divisors (see below), whose sum is σ = 37431100. Its totient is φ = 9166752.

The previous prime is 19861337. The next prime is 19861357. The reversal of 19861348 is 84316891.

It can be written as a sum of positive squares in 2 ways, for example, as 13601344 + 6260004 = 3688^2 + 2502^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19861348.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190923 + ... + 191026.

Almost surely, 2^19861348 is an apocalyptic number.

It is an amenable number.

19861348 is a deficient number, since it is larger than the sum of its proper divisors (17569752).

19861348 is a wasteful number, since it uses less digits than its factorization.

19861348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381966 (or 381964 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 19861348 is about 4456.6072297208. The cubic root of 19861348 is about 270.8130408044.

The spelling of 19861348 in words is "nineteen million, eight hundred sixty-one thousand, three hundred forty-eight".