19142408 has 32 divisors (see below), whose sum is σ = 38941560. Its totient is φ = 8785920.

The previous prime is 19142401. The next prime is 19142413. The reversal of 19142408 is 80424191.

It can be written as a sum of positive squares in 4 ways, for example, as 12802084 + 6340324 = 3578^2 + 2518^2 .

It is not an unprimeable number, because it can be changed into a prime (19142401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3860 + ... + 7292.

Almost surely, 2^19142408 is an apocalyptic number.

It is an amenable number.

19142408 is an abundant number, since it is smaller than the sum of its proper divisors (19799152).

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

19142408 is a wasteful number, since it uses less digits than its factorization.

19142408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3497 (or 3493 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 19142408 is about 4375.2037666833. The cubic root of 19142408 is about 267.5051758978.

Adding to 19142408 its reverse (80424191), we get a palindrome (99566599).

The spelling of 19142408 in words is "nineteen million, one hundred forty-two thousand, four hundred eight".