88138000 has 80 divisors (see below), whose sum is σ = 215414784. Its totient is φ = 34876800.

The previous prime is 88137977. The next prime is 88138007. The reversal of 88138000 is 83188.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 88138000.

It is not an unprimeable number, because it can be changed into a prime (88138007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253827 + ... + 254173.

Almost surely, 2^88138000 is an apocalyptic number.

88138000 is a gapful number since it is divisible by the number (80) 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 88138000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107707392).

88138000 is an abundant number, since it is smaller than the sum of its proper divisors (127276784).

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

88138000 is a wasteful number, since it uses less digits than its factorization.

88138000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 88138000 is about 9388.1840629591. The cubic root of 88138000 is about 445.0284036914.

The spelling of 88138000 in words is "eighty-eight million, one hundred thirty-eight thousand".