42958816 has 48 divisors (see below), whose sum is σ = 87635520. Its totient is φ = 20715520.

The previous prime is 42958807. The next prime is 42958819. The reversal of 42958816 is 61885924.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42958819) 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, 179625 + ... + 179863.

It is an arithmetic number, because the mean of its divisors is an integer number (1825740).

Almost surely, 2^42958816 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 42958816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43817760).

42958816 is an abundant number, since it is smaller than the sum of its proper divisors (44676704).

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

42958816 is a wasteful number, since it uses less digits than its factorization.

42958816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 419 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 42958816 is about 6554.2975214740. The cubic root of 42958816 is about 350.2279222916.

The spelling of 42958816 in words is "forty-two million, nine hundred fifty-eight thousand, eight hundred sixteen".