88545780 has 72 divisors (see below), whose sum is σ = 270597600. Its totient is φ = 23435712.

The previous prime is 88545767. The next prime is 88545781. The reversal of 88545780 is 8754588.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88545781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23251 + ... + 26789.

It is an arithmetic number, because the mean of its divisors is an integer number (3758300).

Almost surely, 2^88545780 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 88545780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135298800).

88545780 is an abundant number, since it is smaller than the sum of its proper divisors (182051820).

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

88545780 is a wasteful number, since it uses less digits than its factorization.

88545780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693 (or 3688 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The square root of 88545780 is about 9409.8767260788. The cubic root of 88545780 is about 445.7136719842.

It can be divided in two parts, 885 and 45780, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 88545780 in words is "eighty-eight million, five hundred forty-five thousand, seven hundred eighty".