28316412 has 48 divisors (see below), whose sum is σ = 75952800. Its totient is φ = 9112320.

The previous prime is 28316371. The next prime is 28316417. The reversal of 28316412 is 21461382.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28316417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1389 + ... + 7652.

It is an arithmetic number, because the mean of its divisors is an integer number (1582350).

Almost surely, 2^28316412 is an apocalyptic number.

It is an amenable number.

28316412 is an abundant number, since it is smaller than the sum of its proper divisors (47636388).

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

28316412 is a wasteful number, since it uses less digits than its factorization.

28316412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9083 (or 9075 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 28316412 is about 5321.3167543382. The cubic root of 28316412 is about 304.7984406889.

Adding to 28316412 its reverse (21461382), we get a palindrome (49777794).

The spelling of 28316412 in words is "twenty-eight million, three hundred sixteen thousand, four hundred twelve".