39072028 has 12 divisors (see below), whose sum is σ = 70581952. Its totient is φ = 18905760.

The previous prime is 39072017. The next prime is 39072029. The reversal of 39072028 is 82027093.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39072029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157425 + ... + 157672.

Almost surely, 2^39072028 is an apocalyptic number.

It is an amenable number.

39072028 is a deficient number, since it is larger than the sum of its proper divisors (31509924).

39072028 is a wasteful number, since it uses less digits than its factorization.

39072028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315132 (or 315130 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 39072028 is about 6250.7621935249. The cubic root of 39072028 is about 339.3297870008.

The spelling of 39072028 in words is "thirty-nine million, seventy-two thousand, twenty-eight".