42447360 has 80 divisors (see below), whose sum is σ = 135723456. Its totient is φ = 11317248.

The previous prime is 42447347. The next prime is 42447367. The reversal of 42447360 is 6374424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42447367) 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, 4917 + ... + 10443.

Almost surely, 2^42447360 is an apocalyptic number.

42447360 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42447360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67861728).

42447360 is an abundant number, since it is smaller than the sum of its proper divisors (93276096).

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

42447360 is an equidigital number, since it uses as much as digits as its factorization.

42447360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553 (or 5537 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 42447360 is about 6515.1638505873. The cubic root of 42447360 is about 348.8324633814.

The spelling of 42447360 in words is "forty-two million, four hundred forty-seven thousand, three hundred sixty".