88220544 has 64 divisors (see below), whose sum is σ = 241927680. Its totient is φ = 28454400.

The previous prime is 88220519. The next prime is 88220549. The reversal of 88220544 is 44502288.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88220549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8199 + ... + 15609.

It is an arithmetic number, because the mean of its divisors is an integer number (3780120).

Almost surely, 2^88220544 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 88220544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120963840).

88220544 is an abundant number, since it is smaller than the sum of its proper divisors (153707136).

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

88220544 is a wasteful number, since it uses less digits than its factorization.

88220544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7459 (or 7447 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 88220544 is about 9392.5791984949. The cubic root of 88220544 is about 445.1672880275.

The spelling of 88220544 in words is "eighty-eight million, two hundred twenty thousand, five hundred forty-four".