19414408 has 64 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 8266752.

The previous prime is 19414403. The next prime is 19414433. The reversal of 19414408 is 80441491.

It is a self number, because there is not a number n which added to its sum of digits gives 19414408.

It is not an unprimeable number, because it can be changed into a prime (19414403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139603 + ... + 139741.

It is an arithmetic number, because the mean of its divisors is an integer number (661500).

Almost surely, 2^19414408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19414408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21168000).

19414408 is an abundant number, since it is smaller than the sum of its proper divisors (22921592).

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

19414408 is a wasteful number, since it uses less digits than its factorization.

19414408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 19414408 is about 4406.1783894890. The cubic root of 19414408 is about 268.7662410953.

Adding to 19414408 its reverse (80441491), we get a palindrome (99855899).

The spelling of 19414408 in words is "nineteen million, four hundred fourteen thousand, four hundred eight".