39034728 has 24 divisors (see below), whose sum is σ = 105719250. Its totient is φ = 13011552.

The previous prime is 39034711. The next prime is 39034729. The reversal of 39034728 is 82743093.

It can be written as a sum of positive squares in only one way, i.e., 32285124 + 6749604 = 5682^2 + 2598^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 39034692 and 39034701.

It is not an unprimeable number, because it can be changed into a prime (39034729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271003 + ... + 271146.

Almost surely, 2^39034728 is an apocalyptic number.

It is an amenable number.

39034728 is an abundant number, since it is smaller than the sum of its proper divisors (66684522).

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

39034728 is a wasteful number, since it uses less digits than its factorization.

39034728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542161 (or 542154 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 39034728 is about 6247.7778449622. Note that the first 3 decimals coincide. The cubic root of 39034728 is about 339.2217725508.

The spelling of 39034728 in words is "thirty-nine million, thirty-four thousand, seven hundred twenty-eight".