16539948 has 18 divisors (see below), whose sum is σ = 41809404. Its totient is φ = 5513304.

The previous prime is 16539871. The next prime is 16539959. The reversal of 16539948 is 84993561.

It is a happy number.

16539948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229686 + ... + 229757.

Almost surely, 2^16539948 is an apocalyptic number.

16539948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16539948 is an abundant number, since it is smaller than the sum of its proper divisors (25269456).

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

16539948 is a wasteful number, since it uses less digits than its factorization.

16539948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459453 (or 459448 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 16539948 is about 4066.9334885144. The cubic root of 16539948 is about 254.7874584214.

The spelling of 16539948 in words is "sixteen million, five hundred thirty-nine thousand, nine hundred forty-eight".