80180442 has 40 divisors (see below), whose sum is σ = 182220192. Its totient is φ = 26346600.

The previous prime is 80180431. The next prime is 80180473. The reversal of 80180442 is 24408108.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8017 + ... + 14987.

Almost surely, 2^80180442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80180442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91110096).

80180442 is an abundant number, since it is smaller than the sum of its proper divisors (102039750).

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

80180442 is a wasteful number, since it uses less digits than its factorization.

80180442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7056 (or 7047 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 80180442 is about 8954.3532429763. The cubic root of 80180442 is about 431.2106534990.

The spelling of 80180442 in words is "eighty million, one hundred eighty thousand, four hundred forty-two".