80388960 has 96 divisors (see below), whose sum is σ = 254469600. Its totient is φ = 21331968.

The previous prime is 80388949. The next prime is 80388967. The reversal of 80388960 is 6988308.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80388967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178816 + ... + 179264.

It is an arithmetic number, because the mean of its divisors is an integer number (2650725).

Almost surely, 2^80388960 is an apocalyptic number.

80388960 is a gapful number since it is divisible by the number (80) 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 80388960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127234800).

80388960 is an abundant number, since it is smaller than the sum of its proper divisors (174080640).

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

80388960 is a wasteful number, since it uses less digits than its factorization.

80388960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 832 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 80388960 is about 8965.9890698127. The cubic root of 80388960 is about 431.5841334004.

The spelling of 80388960 in words is "eighty million, three hundred eighty-eight thousand, nine hundred sixty".