434447478 has 24 divisors (see below), whose sum is σ = 996674328. Its totient is φ = 136297152.

The previous prime is 434447477. The next prime is 434447491. The reversal of 434447478 is 874744434.

It is a super-2 number, since 2×434447478² = 377489222281120968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434447471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 709576 + ... + 710187.

It is an arithmetic number, because the mean of its divisors is an integer number (41528097).

Almost surely, 2^434447478 is an apocalyptic number.

434447478 is an abundant number, since it is smaller than the sum of its proper divisors (562226850).

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

434447478 is a wasteful number, since it uses less digits than its factorization.

434447478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419788 (or 1419785 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 45.

The square root of 434447478 is about 20843.4037047695. The cubic root of 434447478 is about 757.3775484188.

The spelling of 434447478 in words is "four hundred thirty-four million, four hundred forty-seven thousand, four hundred seventy-eight".