16140504 has 16 divisors (see below), whose sum is σ = 40351320. Its totient is φ = 5380160.

The previous prime is 16140479. The next prime is 16140521. The reversal of 16140504 is 40504161.

16140504 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336237 + ... + 336284.

Almost surely, 2^16140504 is an apocalyptic number.

It is an amenable number.

16140504 is an abundant number, since it is smaller than the sum of its proper divisors (24210816).

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

16140504 is a wasteful number, since it uses less digits than its factorization.

16140504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672530 (or 672526 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 16140504 is about 4017.5246110012. The cubic root of 16140504 is about 252.7196611535.

Adding to 16140504 its reverse (40504161), we get a palindrome (56644665).

The spelling of 16140504 in words is "sixteen million, one hundred forty thousand, five hundred four".