446143420 has 24 divisors (see below), whose sum is σ = 977637024. Its totient is φ = 170698176.

The previous prime is 446143417. The next prime is 446143421. The reversal of 446143420 is 24341644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (446143421) 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, 484479 + ... + 485398.

It is an arithmetic number, because the mean of its divisors is an integer number (40734876).

Almost surely, 2^446143420 is an apocalyptic number.

It is an amenable number.

446143420 is an abundant number, since it is smaller than the sum of its proper divisors (531493604).

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

446143420 is a wasteful number, since it uses less digits than its factorization.

446143420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969909 (or 969907 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 446143420 is about 21122.1073759225. The cubic root of 446143420 is about 764.1140126625.

The spelling of 446143420 in words is "four hundred forty-six million, one hundred forty-three thousand, four hundred twenty".