16135404 has 24 divisors (see below), whose sum is σ = 38667888. Its totient is φ = 5232960.

The previous prime is 16135393. The next prime is 16135411. The reversal of 16135404 is 40453161.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17727 + ... + 18614.

It is an arithmetic number, because the mean of its divisors is an integer number (1611162).

Almost surely, 2^16135404 is an apocalyptic number.

It is an amenable number.

16135404 is an abundant number, since it is smaller than the sum of its proper divisors (22532484).

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

16135404 is a wasteful number, since it uses less digits than its factorization.

16135404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36385 (or 36383 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 16135404 is about 4016.8898416561. The cubic root of 16135404 is about 252.6930406290.

Adding to 16135404 its reverse (40453161), we get a palindrome (56588565).

The spelling of 16135404 in words is "sixteen million, one hundred thirty-five thousand, four hundred four".