80486140 has 48 divisors (see below), whose sum is σ = 194406912. Its totient is φ = 27418176.

The previous prime is 80486117. The next prime is 80486141. The reversal of 80486140 is 4168408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80486141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21057 + ... + 24583.

It is an arithmetic number, because the mean of its divisors is an integer number (4050144).

Almost surely, 2^80486140 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 80486140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97203456).

80486140 is an abundant number, since it is smaller than the sum of its proper divisors (113920772).

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

80486140 is a wasteful number, since it uses less digits than its factorization.

80486140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706 (or 3704 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 80486140 is about 8971.4068016114. The cubic root of 80486140 is about 431.7579734271.

The spelling of 80486140 in words is "eighty million, four hundred eighty-six thousand, one hundred forty".