28741632 has 52 divisors (see below), whose sum is σ = 76667760. Its totient is φ = 9576448.

The previous prime is 28741631. The next prime is 28741649. The reversal of 28741632 is 23614782.

It is a junction number, because it is equal to n+sod(n) for n = 28741593 and 28741602.

It is not an unprimeable number, because it can be changed into a prime (28741631) 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, 11119 + ... + 13457.

It is an arithmetic number, because the mean of its divisors is an integer number (1474380).

Almost surely, 2^28741632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28741632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38333880).

28741632 is an abundant number, since it is smaller than the sum of its proper divisors (47926128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28741632 is an equidigital number, since it uses as much as digits as its factorization.

28741632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366 (or 2344 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 28741632 is about 5361.1222705698. The cubic root of 28741632 is about 306.3165590721.

The spelling of 28741632 in words is "twenty-eight million, seven hundred forty-one thousand, six hundred thirty-two".