42163120 has 40 divisors (see below), whose sum is σ = 98770464. Its totient is φ = 16737792.

The previous prime is 42163097. The next prime is 42163123. The reversal of 42163120 is 2136124.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (42163123) 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, 9037 + ... + 12883.

Almost surely, 2^42163120 is an apocalyptic number.

42163120 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 42163120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49385232).

42163120 is an abundant number, since it is smaller than the sum of its proper divisors (56607344).

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

42163120 is a wasteful number, since it uses less digits than its factorization.

42163120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997 (or 3991 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 42163120 is about 6493.3134838848. The cubic root of 42163120 is about 348.0520906742.

Adding to 42163120 its reverse (2136124), we get a palindrome (44299244).

The spelling of 42163120 in words is "forty-two million, one hundred sixty-three thousand, one hundred twenty".