42455168 has 64 divisors (see below), whose sum is σ = 98736000. Its totient is φ = 18176256.

The previous prime is 42455123. The next prime is 42455183. The reversal of 42455168 is 86155424.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43421 + ... + 44387.

It is an arithmetic number, because the mean of its divisors is an integer number (1542750).

Almost surely, 2^42455168 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 42455168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49368000).

42455168 is an abundant number, since it is smaller than the sum of its proper divisors (56280832).

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

42455168 is an frugal number, since it uses more digits than its factorization.

42455168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002 (or 976 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The square root of 42455168 is about 6515.7630405042. The cubic root of 42455168 is about 348.8538507884.

The spelling of 42455168 in words is "forty-two million, four hundred fifty-five thousand, one hundred sixty-eight".