28938344 has 8 divisors (see below), whose sum is σ = 54259410. Its totient is φ = 14469168.

The previous prime is 28938313. The next prime is 28938383. The reversal of 28938344 is 44383982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28622500 + 315844 = 5350^2 + 562^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1808639 + ... + 1808654.

Almost surely, 2^28938344 is an apocalyptic number.

It is an amenable number.

28938344 is a deficient number, since it is larger than the sum of its proper divisors (25321066).

28938344 is a wasteful number, since it uses less digits than its factorization.

28938344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3617299 (or 3617295 counting only the distinct ones).

The product of its digits is 165888, while the sum is 41.

The square root of 28938344 is about 5379.4371452783. The cubic root of 28938344 is about 307.0137961665.

The spelling of 28938344 in words is "twenty-eight million, nine hundred thirty-eight thousand, three hundred forty-four".