80440101 has 16 divisors (see below), whose sum is σ = 136195200. Its totient is φ = 45965664.

The previous prime is 80440093. The next prime is 80440103. The reversal of 80440101 is 10104408.

It is not a de Polignac number, because 80440101 - 2³ = 80440093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80440103) 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, 212616 + ... + 212993.

It is an arithmetic number, because the mean of its divisors is an integer number (8512200).

Almost surely, 2^80440101 is an apocalyptic number.

It is an amenable number.

80440101 is a deficient number, since it is larger than the sum of its proper divisors (55755099).

80440101 is a wasteful number, since it uses less digits than its factorization.

80440101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425625 (or 425619 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 80440101 is about 8968.8405605184. The cubic root of 80440101 is about 431.6756342126.

Adding to 80440101 its reverse (10104408), we get a palindrome (90544509).

The spelling of 80440101 in words is "eighty million, four hundred forty thousand, one hundred one".