16139960 has 16 divisors (see below), whose sum is σ = 36315000. Its totient is φ = 6455968.

The previous prime is 16139939. The next prime is 16139969. The reversal of 16139960 is 6993161.

It is a self number, because there is not a number n which added to its sum of digits gives 16139960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16139969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201710 + ... + 201789.

Almost surely, 2^16139960 is an apocalyptic number.

16139960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16139960 is an abundant number, since it is smaller than the sum of its proper divisors (20175040).

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

16139960 is a wasteful number, since it uses less digits than its factorization.

16139960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403510 (or 403506 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 16139960 is about 4017.4569070495. The cubic root of 16139960 is about 252.7168218981.

The spelling of 16139960 in words is "sixteen million, one hundred thirty-nine thousand, nine hundred sixty".