39069072 has 150 divisors (see below), whose sum is σ = 128683542. Its totient is φ = 11063808.

The previous prime is 39069067. The next prime is 39069101. The reversal of 39069072 is 27096093.

It can be written as a sum of positive squares in only one way, i.e., 22127616 + 16941456 = 4704^2 + 4116^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 345688 + ... + 345800.

Almost surely, 2^39069072 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 39069072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64341771).

39069072 is an abundant number, since it is smaller than the sum of its proper divisors (89614470).

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

39069072 is a wasteful number, since it uses less digits than its factorization.

39069072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 39069072 is about 6250.5257378880. The cubic root of 39069072 is about 339.3212294367.

The spelling of 39069072 in words is "thirty-nine million, sixty-nine thousand, seventy-two".