88642280 has 16 divisors (see below), whose sum is σ = 199445220. Its totient is φ = 35456896.

The previous prime is 88642271. The next prime is 88642289. The reversal of 88642280 is 8224688.

It is an interprime number because it is at equal distance from previous prime (88642271) and next prime (88642289).

It can be written as a sum of positive squares in 2 ways, for example, as 72012196 + 16630084 = 8486^2 + 4078^2 .

It is not an unprimeable number, because it can be changed into a prime (88642289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107989 + ... + 1108068.

Almost surely, 2^88642280 is an apocalyptic number.

It is an amenable number.

88642280 is an abundant number, since it is smaller than the sum of its proper divisors (110802940).

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

88642280 is a wasteful number, since it uses less digits than its factorization.

88642280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216068 (or 2216064 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 88642280 is about 9415.0029208705. The cubic root of 88642280 is about 445.8755308319.

The spelling of 88642280 in words is "eighty-eight million, six hundred forty-two thousand, two hundred eighty".