19408468 has 6 divisors (see below), whose sum is σ = 33964826. Its totient is φ = 9704232.

The previous prime is 19408429. The next prime is 19408469. The reversal of 19408468 is 86480491.

It can be written as a sum of positive squares in only one way, i.e., 11410884 + 7997584 = 3378^2 + 2828^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19408468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19408469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2426055 + ... + 2426062.

Almost surely, 2^19408468 is an apocalyptic number.

It is an amenable number.

19408468 is a deficient number, since it is larger than the sum of its proper divisors (14556358).

19408468 is a wasteful number, since it uses less digits than its factorization.

19408468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4852121 (or 4852119 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 19408468 is about 4405.5042844151. The cubic root of 19408468 is about 268.7388278752.

The spelling of 19408468 in words is "nineteen million, four hundred eight thousand, four hundred sixty-eight".