28314012 has 24 divisors (see below), whose sum is σ = 68939136. Its totient is φ = 9027568.

The previous prime is 28314001. The next prime is 28314017. The reversal of 28314012 is 21041382.

28314012 = T₁₄₃ + T₁₄₄ + ... + T₅₅₆.

It is a super-2 number, since 2×28314012² = 1603366551072288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28314012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28314017) 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, 51018 + ... + 51569.

It is an arithmetic number, because the mean of its divisors is an integer number (2872464).

Almost surely, 2^28314012 is an apocalyptic number.

It is an amenable number.

28314012 is an abundant number, since it is smaller than the sum of its proper divisors (40625124).

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

28314012 is a wasteful number, since it uses less digits than its factorization.

28314012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102617 (or 102615 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 28314012 is about 5321.0912414654. The cubic root of 28314012 is about 304.7898292292.

Adding to 28314012 its reverse (21041382), we get a palindrome (49355394).

The spelling of 28314012 in words is "twenty-eight million, three hundred fourteen thousand, twelve".