80471242 has 4 divisors (see below), whose sum is σ = 120706866. Its totient is φ = 40235620.

The previous prime is 80471179. The next prime is 80471249. The reversal of 80471242 is 24217408.

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

It can be written as a sum of positive squares in only one way, i.e., 76895361 + 3575881 = 8769^2 + 1891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80471242.

It is not an unprimeable number, because it can be changed into a prime (80471249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117809 + ... + 20117812.

Almost surely, 2^80471242 is an apocalyptic number.

80471242 is a deficient number, since it is larger than the sum of its proper divisors (40235624).

80471242 is a wasteful number, since it uses less digits than its factorization.

80471242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40235623.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 80471242 is about 8970.5764586229. The cubic root of 80471242 is about 431.7313322886.

The spelling of 80471242 in words is "eighty million, four hundred seventy-one thousand, two hundred forty-two".