42953216 has 40 divisors (see below), whose sum is σ = 87863424. Its totient is φ = 20966400.

The previous prime is 42953201. The next prime is 42953219. The reversal of 42953216 is 61235924.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (42953219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21041 + ... + 22991.

Almost surely, 2^42953216 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 42953216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43931712).

42953216 is an abundant number, since it is smaller than the sum of its proper divisors (44910208).

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

42953216 is an equidigital number, since it uses as much as digits as its factorization.

42953216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 1996 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 42953216 is about 6553.8703069255. The cubic root of 42953216 is about 350.2127033620.

The spelling of 42953216 in words is "forty-two million, nine hundred fifty-three thousand, two hundred sixteen".