19145408 has 14 divisors (see below), whose sum is σ = 37991796. Its totient is φ = 9572672.

The previous prime is 19145393. The next prime is 19145419. The reversal of 19145408 is 80454191.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149510 + ... + 149637.

Almost surely, 2^19145408 is an apocalyptic number.

It is an amenable number.

19145408 is a deficient number, since it is larger than the sum of its proper divisors (18846388).

19145408 is an equidigital number, since it uses as much as digits as its factorization.

19145408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299159 (or 299149 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 19145408 is about 4375.5465944268. The cubic root of 19145408 is about 267.5191496466.

Adding to 19145408 its reverse (80454191), we get a palindrome (99599599).

The spelling of 19145408 in words is "nineteen million, one hundred forty-five thousand, four hundred eight".