39078228 has 96 divisors (see below), whose sum is σ = 110387200. Its totient is φ = 10523520.

The previous prime is 39078211. The next prime is 39078229. The reversal of 39078228 is 82287093.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39078229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111798 + ... + 112146.

Almost surely, 2^39078228 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 39078228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55193600).

39078228 is an abundant number, since it is smaller than the sum of its proper divisors (71308972).

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

39078228 is a wasteful number, since it uses less digits than its factorization.

39078228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 39078228 is about 6251.2581133721. The cubic root of 39078228 is about 339.3477344815.

The spelling of 39078228 in words is "thirty-nine million, seventy-eight thousand, two hundred twenty-eight".