447580842 has 16 divisors (see below), whose sum is σ = 897234240. Its totient is φ = 148848192.

The previous prime is 447580831. The next prime is 447580849. The reversal of 447580842 is 248085744.

It is a super-2 number, since 2×447580842² = 400657220250857928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 447580794 and 447580803.

It is not an unprimeable number, because it can be changed into a prime (447580849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83542 + ... + 88737.

It is an arithmetic number, because the mean of its divisors is an integer number (56077140).

Almost surely, 2^447580842 is an apocalyptic number.

447580842 is an abundant number, since it is smaller than the sum of its proper divisors (449653398).

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

447580842 is a wasteful number, since it uses less digits than its factorization.

447580842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172717.

The product of its (nonzero) digits is 286720, while the sum is 42.

The square root of 447580842 is about 21156.1064943434. The cubic root of 447580842 is about 764.9337616193.

The spelling of 447580842 in words is "four hundred forty-seven million, five hundred eighty thousand, eight hundred forty-two".