28112416 has 12 divisors (see below), whose sum is σ = 55346382. Its totient is φ = 14056192.

The previous prime is 28112401. The next prime is 28112423. The reversal of 28112416 is 61421182.

It can be written as a sum of positive squares in only one way, i.e., 20250000 + 7862416 = 4500^2 + 2804^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439225 + ... + 439288.

Almost surely, 2^28112416 is an apocalyptic number.

It is an amenable number.

28112416 is a deficient number, since it is larger than the sum of its proper divisors (27233966).

28112416 is an equidigital number, since it uses as much as digits as its factorization.

28112416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878523 (or 878515 counting only the distinct ones).

The product of its digits is 768, while the sum is 25.

The square root of 28112416 is about 5302.1142952600. The cubic root of 28112416 is about 304.0647369058.

Adding to 28112416 its reverse (61421182), we get a palindrome (89533598).

The spelling of 28112416 in words is "twenty-eight million, one hundred twelve thousand, four hundred sixteen".