38442330 has 64 divisors (see below), whose sum is σ = 103230720. Its totient is φ = 10179648.

The previous prime is 38442323. The next prime is 38442353. The reversal of 38442330 is 3324483.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 38442294 and 38442303.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46299 + ... + 47121.

It is an arithmetic number, because the mean of its divisors is an integer number (1612980).

Almost surely, 2^38442330 is an apocalyptic number.

38442330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38442330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51615360).

38442330 is an abundant number, since it is smaller than the sum of its proper divisors (64788390).

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

38442330 is a wasteful number, since it uses less digits than its factorization.

38442330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 38442330 is about 6200.1879003785. The cubic root of 38442330 is about 337.4969876274.

The spelling of 38442330 in words is "thirty-eight million, four hundred forty-two thousand, three hundred thirty".