80888040 has 96 divisors (see below), whose sum is σ = 278371080. Its totient is φ = 20299776.

The previous prime is 80888029. The next prime is 80888051. The reversal of 80888040 is 4088808.

It is an interprime number because it is at equal distance from previous prime (80888029) and next prime (80888051).

It can be written as a sum of positive squares in 4 ways, for example, as 70660836 + 10227204 = 8406^2 + 3198^2 .

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 = 80887986 and 80888004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 489 + ... + 12728.

Almost surely, 2^80888040 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 80888040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139185540).

80888040 is an abundant number, since it is smaller than the sum of its proper divisors (197483040).

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

80888040 is a wasteful number, since it uses less digits than its factorization.

80888040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13251 (or 13244 counting only the distinct ones).

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

The square root of 80888040 is about 8993.7778491577. Note that the first 3 decimals coincide. The cubic root of 80888040 is about 432.4754282319.

The spelling of 80888040 in words is "eighty million, eight hundred eighty-eight thousand, forty".