93138880 has 112 divisors (see below), whose sum is σ = 235549440. Its totient is φ = 35020800.

The previous prime is 93138853. The next prime is 93138889. The reversal of 93138880 is 8883139.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93138889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406606 + ... + 406834.

It is an arithmetic number, because the mean of its divisors is an integer number (2103120).

Almost surely, 2^93138880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 93138880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117774720).

93138880 is an abundant number, since it is smaller than the sum of its proper divisors (142410560).

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

93138880 is a wasteful number, since it uses less digits than its factorization.

93138880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 93138880 is about 9650.8486673453. The cubic root of 93138880 is about 453.2909033722.

The spelling of 93138880 in words is "ninety-three million, one hundred thirty-eight thousand, eight hundred eighty".