16142404 has 6 divisors (see below), whose sum is σ = 28249214. Its totient is φ = 8071200.

The previous prime is 16142393. The next prime is 16142407. The reversal of 16142404 is 40424161.

It can be written as a sum of positive squares in only one way, i.e., 11088900 + 5053504 = 3330^2 + 2248^2 .

It is not an unprimeable number, because it can be changed into a prime (16142407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2017797 + ... + 2017804.

Almost surely, 2^16142404 is an apocalyptic number.

It is an amenable number.

16142404 is a deficient number, since it is larger than the sum of its proper divisors (12106810).

16142404 is a wasteful number, since it uses less digits than its factorization.

16142404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4035605 (or 4035603 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 16142404 is about 4017.7610680577. The cubic root of 16142404 is about 252.7295771701.

Adding to 16142404 its reverse (40424161), we get a palindrome (56566565).

The spelling of 16142404 in words is "sixteen million, one hundred forty-two thousand, four hundred four".