88216740 has 144 divisors (see below), whose sum is σ = 286820352. Its totient is φ = 21869568.

The previous prime is 88216721. The next prime is 88216759. The reversal of 88216740 is 4761288.

It is an interprime number because it is at equal distance from previous prime (88216721) and next prime (88216759).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 88216695 and 88216704.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388507 + ... + 388733.

It is an arithmetic number, because the mean of its divisors is an integer number (1991808).

Almost surely, 2^88216740 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 88216740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143410176).

88216740 is an abundant number, since it is smaller than the sum of its proper divisors (198603612).

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

88216740 is a wasteful number, since it uses less digits than its factorization.

88216740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 88216740 is about 9392.3766960232. The cubic root of 88216740 is about 445.1608895153.

The spelling of 88216740 in words is "eighty-eight million, two hundred sixteen thousand, seven hundred forty".