80489138 has 8 divisors (see below), whose sum is σ = 120816300. Its totient is φ = 40217040.

The previous prime is 80489137. The next prime is 80489141. The reversal of 80489138 is 83198408.

It can be written as a sum of positive squares in 2 ways, for example, as 80156209 + 332929 = 8953^2 + 577^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80489095 and 80489104.

It is not an unprimeable number, because it can be changed into a prime (80489131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9893 + ... + 16088.

Almost surely, 2^80489138 is an apocalyptic number.

80489138 is a deficient number, since it is larger than the sum of its proper divisors (40327162).

80489138 is a wasteful number, since it uses less digits than its factorization.

80489138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27532.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 80489138 is about 8971.5738864482. The cubic root of 80489138 is about 431.7633341610.

The spelling of 80489138 in words is "eighty million, four hundred eighty-nine thousand, one hundred thirty-eight".