39228426 has 36 divisors (see below), whose sum is σ = 89718642. Its totient is φ = 12385872.

The previous prime is 39228421. The next prime is 39228439. The reversal of 39228426 is 62482293.

39228426 is a `hidden beast` number, since 3 + 9 + 228 + 426 = 666.

It can be written as a sum of positive squares in only one way, i.e., 37197801 + 2030625 = 6099^2 + 1425^2 .

It is not an unprimeable number, because it can be changed into a prime (39228421) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3480 + ... + 9516.

Almost surely, 2^39228426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39228426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44859321).

39228426 is an abundant number, since it is smaller than the sum of its proper divisors (50490216).

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

39228426 is a wasteful number, since it uses less digits than its factorization.

39228426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6083 (or 6061 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 39228426 is about 6263.2600137628. The cubic root of 39228426 is about 339.7819420707.

The spelling of 39228426 in words is "thirty-nine million, two hundred twenty-eight thousand, four hundred twenty-six".