39278052 has 108 divisors (see below), whose sum is σ = 111541248. Its totient is φ = 11642400.

The previous prime is 39278047. The next prime is 39278059. The reversal of 39278052 is 25087293.

It is a happy number.

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 = 39277998 and 39278016.

It is not an unprimeable number, because it can be changed into a prime (39278059) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 309213 + ... + 309339.

Almost surely, 2^39278052 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 39278052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55770624).

39278052 is an abundant number, since it is smaller than the sum of its proper divisors (72263196).

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

39278052 is a wasteful number, since it uses less digits than its factorization.

39278052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 39278052 is about 6267.2204365253. The cubic root of 39278052 is about 339.9251623060.

The spelling of 39278052 in words is "thirty-nine million, two hundred seventy-eight thousand, fifty-two".