16281012 has 24 divisors (see below), whose sum is σ = 41442912. Its totient is φ = 4933600.

The previous prime is 16281011. The next prime is 16281049. The reversal of 16281012 is 21018261.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16281012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16281011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61539 + ... + 61802.

It is an arithmetic number, because the mean of its divisors is an integer number (1726788).

Almost surely, 2^16281012 is an apocalyptic number.

16281012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16281012 is an abundant number, since it is smaller than the sum of its proper divisors (25161900).

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

16281012 is a wasteful number, since it uses less digits than its factorization.

16281012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123359 (or 123357 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 16281012 is about 4034.9736058616. The cubic root of 16281012 is about 253.4508772776.

Adding to 16281012 its reverse (21018261), we get a palindrome (37299273).

The spelling of 16281012 in words is "sixteen million, two hundred eighty-one thousand, twelve".