38308842 has 128 divisors (see below), whose sum is σ = 103299840. Its totient is φ = 10454400.

The previous prime is 38308841. The next prime is 38308859. The reversal of 38308842 is 24880383.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38308797 and 38308806.

It is not an unprimeable number, because it can be changed into a prime (38308841) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 934342 + ... + 934382.

It is an arithmetic number, because the mean of its divisors is an integer number (807030).

Almost surely, 2^38308842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38308842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51649920).

38308842 is an abundant number, since it is smaller than the sum of its proper divisors (64990998).

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

38308842 is a wasteful number, since it uses less digits than its factorization.

38308842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 38308842 is about 6189.4137040595. The cubic root of 38308842 is about 337.1058905824.

The spelling of 38308842 in words is "thirty-eight million, three hundred eight thousand, eight hundred forty-two".