28315416 has 32 divisors (see below), whose sum is σ = 71166960. Its totient is φ = 9388032.

The previous prime is 28315381. The next prime is 28315423. The reversal of 28315416 is 61451382.

It is a congruent number.

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, 1576 + ... + 7688.

Almost surely, 2^28315416 is an apocalyptic number.

It is an amenable number.

28315416 is an abundant number, since it is smaller than the sum of its proper divisors (42851544).

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

28315416 is a wasteful number, since it uses less digits than its factorization.

28315416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6315 (or 6311 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 28315416 is about 5321.2231676561. The cubic root of 28315416 is about 304.7948669922.

Adding to 28315416 its reverse (61451382), we get a palindrome (89766798).

The spelling of 28315416 in words is "twenty-eight million, three hundred fifteen thousand, four hundred sixteen".