80231040 has 128 divisors (see below), whose sum is σ = 284212800. Its totient is φ = 21390336.

The previous prime is 80231027. The next prime is 80231051. The reversal of 80231040 is 4013208.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 14959 + ... + 19601.

Almost surely, 2^80231040 is an apocalyptic number.

80231040 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 80231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142106400).

80231040 is an abundant number, since it is smaller than the sum of its proper divisors (203981760).

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

80231040 is a wasteful number, since it uses less digits than its factorization.

80231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4671 (or 4653 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 80231040 is about 8957.1781270666. The cubic root of 80231040 is about 431.3013398235.

Adding to 80231040 its reverse (4013208), we get a palindrome (84244248).

The spelling of 80231040 in words is "eighty million, two hundred thirty-one thousand, forty".