16513434 has 24 divisors (see below), whose sum is σ = 40890720. Its totient is φ = 4718088.

The previous prime is 16513411. The next prime is 16513463. The reversal of 16513434 is 43431561.

16513434 is a `hidden beast` number, since 1 + 651 + 3 + 4 + 3 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 16513398 and 16513407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65404 + ... + 65655.

It is an arithmetic number, because the mean of its divisors is an integer number (1703780).

Almost surely, 2^16513434 is an apocalyptic number.

16513434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16513434 is an abundant number, since it is smaller than the sum of its proper divisors (24377286).

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

16513434 is a wasteful number, since it uses less digits than its factorization.

16513434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131074 (or 131071 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 16513434 is about 4063.6724769597. The cubic root of 16513434 is about 254.6512417979.

Adding to 16513434 its reverse (43431561), we get a palindrome (59944995).

The spelling of 16513434 in words is "sixteen million, five hundred thirteen thousand, four hundred thirty-four".