28438352 has 20 divisors (see below), whose sum is σ = 55455156. Its totient is φ = 14127360.

The previous prime is 28438343. The next prime is 28438367. The reversal of 28438352 is 25383482.

It can be written as a sum of positive squares in 2 ways, for example, as 4857616 + 23580736 = 2204^2 + 4856^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3149 + ... + 8172.

Almost surely, 2^28438352 is an apocalyptic number.

It is an amenable number.

28438352 is a deficient number, since it is larger than the sum of its proper divisors (27016804).

28438352 is a wasteful number, since it uses less digits than its factorization.

28438352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11486 (or 11480 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 28438352 is about 5332.7621360792. The cubic root of 28438352 is about 305.2353357041.

The spelling of 28438352 in words is "twenty-eight million, four hundred thirty-eight thousand, three hundred fifty-two".