28119332 has 6 divisors (see below), whose sum is σ = 49208838. Its totient is φ = 14059664.

The previous prime is 28119331. The next prime is 28119347. The reversal of 28119332 is 23391182.

It can be written as a sum of positive squares in only one way, i.e., 17255716 + 10863616 = 4154^2 + 3296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28119295 and 28119304.

It is not an unprimeable number, because it can be changed into a prime (28119331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3514913 + ... + 3514920.

It is an arithmetic number, because the mean of its divisors is an integer number (8201473).

Almost surely, 2^28119332 is an apocalyptic number.

It is an amenable number.

28119332 is a deficient number, since it is larger than the sum of its proper divisors (21089506).

28119332 is a wasteful number, since it uses less digits than its factorization.

28119332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7029837 (or 7029835 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 28119332 is about 5302.7664478082. The cubic root of 28119332 is about 304.0896694160.

The spelling of 28119332 in words is "twenty-eight million, one hundred nineteen thousand, three hundred thirty-two".