447143342 has 4 divisors (see below), whose sum is σ = 670715016. Its totient is φ = 223571670.

The previous prime is 447143341. The next prime is 447143353. The reversal of 447143342 is 243341744.

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

It is a junction number, because it is equal to n+sod(n) for n = 447143299 and 447143308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447143341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111785834 + ... + 111785837.

It is an arithmetic number, because the mean of its divisors is an integer number (167678754).

Almost surely, 2^447143342 is an apocalyptic number.

447143342 is a deficient number, since it is larger than the sum of its proper divisors (223571674).

447143342 is a wasteful number, since it uses less digits than its factorization.

447143342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223571673.

The product of its digits is 32256, while the sum is 32.

The square root of 447143342 is about 21145.7641621200. The cubic root of 447143342 is about 764.6844453030.

The spelling of 447143342 in words is "four hundred forty-seven million, one hundred forty-three thousand, three hundred forty-two".