80751840 has 96 divisors (see below), whose sum is σ = 273956256. Its totient is φ = 19875840.

The previous prime is 80751833. The next prime is 80751857. The reversal of 80751840 is 4815708.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231 + ... + 12710.

It is an arithmetic number, because the mean of its divisors is an integer number (2853711).

Almost surely, 2^80751840 is an apocalyptic number.

80751840 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 80751840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136978128).

80751840 is an abundant number, since it is smaller than the sum of its proper divisors (193204416).

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

80751840 is a wasteful number, since it uses less digits than its factorization.

80751840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12972 (or 12964 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 80751840 is about 8986.2027575612. The cubic root of 80751840 is about 432.2325565423.

The spelling of 80751840 in words is "eighty million, seven hundred fifty-one thousand, eight hundred forty".