36389728 has 12 divisors (see below), whose sum is σ = 71642340. Its totient is φ = 18194848.

The previous prime is 36389719. The next prime is 36389789. The reversal of 36389728 is 82798363.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568558 + ... + 568621.

It is an arithmetic number, because the mean of its divisors is an integer number (5970195).

Almost surely, 2^36389728 is an apocalyptic number.

It is an amenable number.

36389728 is a deficient number, since it is larger than the sum of its proper divisors (35252612).

36389728 is a wasteful number, since it uses less digits than its factorization.

36389728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137189 (or 1137181 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 36389728 is about 6032.3899078226. The cubic root of 36389728 is about 331.3799818355.

It can be divided in two parts, 3638 and 9728, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 36389728 in words is "thirty-six million, three hundred eighty-nine thousand, seven hundred twenty-eight".