39423942 has 48 divisors (see below), whose sum is σ = 89473680. Its totient is φ = 12866688.

The previous prime is 39423911. The next prime is 39423949. The reversal of 39423942 is 24932493.

It is a junction number, because it is equal to n+sod(n) for n = 39423897 and 39423906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39423949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287698 + ... + 287834.

It is an arithmetic number, because the mean of its divisors is an integer number (1864035).

Almost surely, 2^39423942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39423942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44736840).

39423942 is an abundant number, since it is smaller than the sum of its proper divisors (50049738).

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

39423942 is a wasteful number, since it uses less digits than its factorization.

39423942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 215 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 39423942 is about 6278.8487798322. The cubic root of 39423942 is about 340.3455023053.

It can be divided in two parts, 394 and 23942, that added together give a square (24336 = 156²).

The spelling of 39423942 in words is "thirty-nine million, four hundred twenty-three thousand, nine hundred forty-two".