16840012 has 24 divisors (see below), whose sum is σ = 34503840. Its totient is φ = 7040640.

The previous prime is 16840009. The next prime is 16840067. The reversal of 16840012 is 21004861.

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, 6187 + ... + 8482.

It is an arithmetic number, because the mean of its divisors is an integer number (1437660).

Almost surely, 2^16840012 is an apocalyptic number.

It is an amenable number.

16840012 is an abundant number, since it is smaller than the sum of its proper divisors (17663828).

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

16840012 is a wasteful number, since it uses less digits than its factorization.

16840012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14721 (or 14719 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 16840012 is about 4103.6583678469. The cubic root of 16840012 is about 256.3189993054.

Adding to 16840012 its reverse (21004861), we get a palindrome (37844873).

The spelling of 16840012 in words is "sixteen million, eight hundred forty thousand, twelve".