447683640 has 32 divisors (see below), whose sum is σ = 1343051280. Its totient is φ = 119382272.

The previous prime is 447683623. The next prime is 447683641. The reversal of 447683640 is 46386744.

It is a junction number, because it is equal to n+sod(n) for n = 447683592 and 447683601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447683641) 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, 1865229 + ... + 1865468.

Almost surely, 2^447683640 is an apocalyptic number.

447683640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447683640 is an abundant number, since it is smaller than the sum of its proper divisors (895367640).

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

447683640 is a wasteful number, since it uses less digits than its factorization.

447683640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730711 (or 3730707 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 42.

The square root of 447683640 is about 21158.5358661699. The cubic root of 447683640 is about 764.9923191164.

The spelling of 447683640 in words is "four hundred forty-seven million, six hundred eighty-three thousand, six hundred forty".