42520448 has 16 divisors (see below), whose sum is σ = 84708960. Its totient is φ = 21260160.

The previous prime is 42520447. The next prime is 42520487. The reversal of 42520448 is 84402524.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 42520448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165968 + ... + 166223.

It is an arithmetic number, because the mean of its divisors is an integer number (5294310).

Almost surely, 2^42520448 is an apocalyptic number.

It is an amenable number.

42520448 is a deficient number, since it is larger than the sum of its proper divisors (42188512).

42520448 is an equidigital number, since it uses as much as digits as its factorization.

42520448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332205 (or 332193 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 42520448 is about 6520.7705066196. The cubic root of 42520448 is about 349.0325610078.

The spelling of 42520448 in words is "forty-two million, five hundred twenty thousand, four hundred forty-eight".