28514136 has 64 divisors (see below), whose sum is σ = 85766400. Its totient is φ = 7717248.

The previous prime is 28514131. The next prime is 28514137. The reversal of 28514136 is 63141582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28514131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275 + ... + 7658.

It is an arithmetic number, because the mean of its divisors is an integer number (1340100).

Almost surely, 2^28514136 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 28514136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42883200).

28514136 is an abundant number, since it is smaller than the sum of its proper divisors (57252264).

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

28514136 is a wasteful number, since it uses less digits than its factorization.

28514136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8968 (or 8964 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 28514136 is about 5339.8629195889. The cubic root of 28514136 is about 305.5062308823.

The spelling of 28514136 in words is "twenty-eight million, five hundred fourteen thousand, one hundred thirty-six".