40088880 has 120 divisors (see below), whose sum is σ = 145021968. Its totient is φ = 9865728.

The previous prime is 40088869. The next prime is 40088887. The reversal of 40088880 is 8888004.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is not an unprimeable number, because it can be changed into a prime (40088887) 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, 7219 + ... + 11501.

Almost surely, 2^40088880 is an apocalyptic number.

40088880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40088880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72510984).

40088880 is an abundant number, since it is smaller than the sum of its proper divisors (104933088).

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

40088880 is a wasteful number, since it uses less digits than its factorization.

40088880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4315 (or 4306 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 40088880 is about 6331.5780023624. The cubic root of 40088880 is about 342.2483063893.

The spelling of 40088880 in words is "forty million, eighty-eight thousand, eight hundred eighty".