28148248 has 16 divisors (see below), whose sum is σ = 54480960. Its totient is φ = 13620000.

The previous prime is 28148213. The next prime is 28148249. The reversal of 28148248 is 84284182.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28148249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56503 + ... + 56998.

It is an arithmetic number, because the mean of its divisors is an integer number (3405060).

Almost surely, 2^28148248 is an apocalyptic number.

It is an amenable number.

28148248 is a deficient number, since it is larger than the sum of its proper divisors (26332712).

28148248 is a wasteful number, since it uses less digits than its factorization.

28148248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113538 (or 113534 counting only the distinct ones).

The product of its digits is 32768, while the sum is 37.

The square root of 28148248 is about 5305.4922486043. The cubic root of 28148248 is about 304.1938687209.

The spelling of 28148248 in words is "twenty-eight million, one hundred forty-eight thousand, two hundred forty-eight".