447620140 has 36 divisors (see below), whose sum is σ = 1033231248. Its totient is φ = 162770080.

The previous prime is 447620137. The next prime is 447620141. The reversal of 447620140 is 41026744.

It is a junction number, because it is equal to n+sod(n) for n = 447620099 and 447620108.

It is not an unprimeable number, because it can be changed into a prime (447620141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90064 + ... + 94903.

It is an arithmetic number, because the mean of its divisors is an integer number (28700868).

Almost surely, 2^447620140 is an apocalyptic number.

It is an amenable number.

447620140 is an abundant number, since it is smaller than the sum of its proper divisors (585611108).

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

447620140 is a wasteful number, since it uses less digits than its factorization.

447620140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184998 (or 184985 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 447620140 is about 21157.0352365354. The cubic root of 447620140 is about 764.9561482546.

Adding to 447620140 its reverse (41026744), we get a palindrome (488646884).

The spelling of 447620140 in words is "four hundred forty-seven million, six hundred twenty thousand, one hundred forty".