80400041 has 4 divisors (see below), whose sum is σ = 80427012. Its totient is φ = 80373072.

The previous prime is 80400029. The next prime is 80400059. The reversal of 80400041 is 14000408.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32444416 + 47955625 = 5696^2 + 6925^2 .

It is a cyclic number.

It is not a de Polignac number, because 80400041 - 2²² = 76205737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80399992 and 80400019.

It is not an unprimeable number, because it can be changed into a prime (80400011) 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, 8366 + ... + 15191.

It is an arithmetic number, because the mean of its divisors is an integer number (20106753).

Almost surely, 2^80400041 is an apocalyptic number.

It is an amenable number.

80400041 is a deficient number, since it is larger than the sum of its proper divisors (26971).

80400041 is a wasteful number, since it uses less digits than its factorization.

80400041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26970.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 80400041 is about 8966.6069948448. The cubic root of 80400041 is about 431.6039626741.

Adding to 80400041 its reverse (14000408), we get a palindrome (94400449).

The spelling of 80400041 in words is "eighty million, four hundred thousand, forty-one".