42056424 has 96 divisors (see below), whose sum is σ = 121867200. Its totient is φ = 13063680.

The previous prime is 42056423. The next prime is 42056449. The reversal of 42056424 is 42465024.

It is not an unprimeable number, because it can be changed into a prime (42056423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96912 + ... + 97344.

It is an arithmetic number, because the mean of its divisors is an integer number (1269450).

Almost surely, 2^42056424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42056424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60933600).

42056424 is an abundant number, since it is smaller than the sum of its proper divisors (79810776).

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

42056424 is a wasteful number, since it uses less digits than its factorization.

42056424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 42056424 is about 6485.0924434429. The cubic root of 42056424 is about 347.7582546183.

The spelling of 42056424 in words is "forty-two million, fifty-six thousand, four hundred twenty-four".