38944620 has 288 divisors, whose sum is σ = 148599360. Its totient is φ = 8110080.

The previous prime is 38944613. The next prime is 38944639. The reversal of 38944620 is 2644983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 437536 + ... + 437624.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^38944620 is an apocalyptic number.

38944620 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38944620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74299680).

38944620 is an abundant number, since it is smaller than the sum of its proper divisors (109654740).

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

38944620 is a wasteful number, since it uses less digits than its factorization.

38944620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 140 counting only the distinct ones).

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

The square root of 38944620 is about 6240.5624746492. The cubic root of 38944620 is about 338.9605509216.

The spelling of 38944620 in words is "thirty-eight million, nine hundred forty-four thousand, six hundred twenty".