42447000 has 64 divisors (see below), whose sum is σ = 132444000. Its totient is φ = 11318400.

The previous prime is 42446951. The next prime is 42447023. The reversal of 42447000 is 74424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075 + ... + 10074.

Almost surely, 2^42447000 is an apocalyptic number.

42447000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42447000 is an abundant number, since it is smaller than the sum of its proper divisors (89997000).

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

42447000 is a wasteful number, since it uses less digits than its factorization.

42447000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14173 (or 14159 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 42447000 is about 6515.1362226741. The cubic root of 42447000 is about 348.8314772185.

The spelling of 42447000 in words is "forty-two million, four hundred forty-seven thousand".