28741628 has 54 divisors (see below), whose sum is σ = 57043056. Its totient is φ = 12662144.

The previous prime is 28741597. The next prime is 28741631. The reversal of 28741628 is 82614782.

It is a junction number, because it is equal to n+sod(n) for n = 28741591 and 28741600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 611501 + ... + 611547.

Almost surely, 2^28741628 is an apocalyptic number.

It is an amenable number.

28741628 is a deficient number, since it is larger than the sum of its proper divisors (28301428).

28741628 is a wasteful number, since it uses less digits than its factorization.

28741628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 89 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 28741628 is about 5361.1218975136. The cubic root of 28741628 is about 306.3165448620.

The spelling of 28741628 in words is "twenty-eight million, seven hundred forty-one thousand, six hundred twenty-eight".