42448520 has 64 divisors (see below), whose sum is σ = 99290880. Its totient is φ = 16321536.

The previous prime is 42448493. The next prime is 42448531. The reversal of 42448520 is 2584424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125792 + ... + 126128.

It is an arithmetic number, because the mean of its divisors is an integer number (1551420).

Almost surely, 2^42448520 is an apocalyptic number.

42448520 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 42448520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49645440).

42448520 is an abundant number, since it is smaller than the sum of its proper divisors (56842360).

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

42448520 is a wasteful number, since it uses less digits than its factorization.

42448520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 458 counting only the distinct ones).

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

The square root of 42448520 is about 6515.2528730664. The cubic root of 42448520 is about 348.8356409797.

The spelling of 42448520 in words is "forty-two million, four hundred forty-eight thousand, five hundred twenty".