38813880 has 256 divisors, whose sum is σ = 145152000. Its totient is φ = 8279040.

The previous prime is 38813843. The next prime is 38813893. The reversal of 38813880 is 8831883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 946660 + ... + 946700.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

Almost surely, 2^38813880 is an apocalyptic number.

38813880 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 38813880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72576000).

38813880 is an abundant number, since it is smaller than the sum of its proper divisors (106338120).

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

38813880 is a wasteful number, since it uses less digits than its factorization.

38813880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 38813880 is about 6230.0786511889. The cubic root of 38813880 is about 338.5808203752.

It can be divided in two parts, 38813 and 880, that added together give a palindrome (39693).

The spelling of 38813880 in words is "thirty-eight million, eight hundred thirteen thousand, eight hundred eighty".