88121380 has 12 divisors (see below), whose sum is σ = 185054940. Its totient is φ = 35248544.

The previous prime is 88121357. The next prime is 88121417. The reversal of 88121380 is 8312188.

It can be written as a sum of positive squares in 2 ways, for example, as 26152996 + 61968384 = 5114^2 + 7872^2 .

It is a super-2 number, since 2×88121380² = 15530755226208800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203015 + ... + 2203054.

It is an arithmetic number, because the mean of its divisors is an integer number (15421245).

Almost surely, 2^88121380 is an apocalyptic number.

It is an amenable number.

88121380 is an abundant number, since it is smaller than the sum of its proper divisors (96933560).

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

88121380 is a wasteful number, since it uses less digits than its factorization.

88121380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406078 (or 4406076 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 88121380 is about 9387.2988660210. The cubic root of 88121380 is about 445.0004292383. Note that the first 3 decimals are identical.

The spelling of 88121380 in words is "eighty-eight million, one hundred twenty-one thousand, three hundred eighty".