28735074 has 40 divisors (see below), whose sum is σ = 65143980. Its totient is φ = 9465984.

The previous prime is 28735039. The next prime is 28735079. The reversal of 28735074 is 47053782.

It can be written as a sum of positive squares in 2 ways, for example, as 28676025 + 59049 = 5355^2 + 243^2 .

It is not an unprimeable number, because it can be changed into a prime (28735079) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13422 + ... + 15414.

Almost surely, 2^28735074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28735074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32571990).

28735074 is an abundant number, since it is smaller than the sum of its proper divisors (36408906).

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

28735074 is a wasteful number, since it uses less digits than its factorization.

28735074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096 (or 2087 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 28735074 is about 5360.5106100072. The cubic root of 28735074 is about 306.2932598060.

The spelling of 28735074 in words is "twenty-eight million, seven hundred thirty-five thousand, seventy-four".