42113808 has 90 divisors (see below), whose sum is σ = 129602382. Its totient is φ = 12756480.

The previous prime is 42113801. The next prime is 42113831. The reversal of 42113808 is 80831124.

It can be written as a sum of positive squares in only one way, i.e., 41835024 + 278784 = 6468^2 + 528^2 .

It is not an unprimeable number, because it can be changed into a prime (42113801) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16216 + ... + 18632.

Almost surely, 2^42113808 is an apocalyptic number.

42113808 is a gapful number since it is divisible by the number (48) 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 42113808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64801191).

42113808 is an abundant number, since it is smaller than the sum of its proper divisors (87488574).

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

42113808 is a wasteful number, since it uses less digits than its factorization.

42113808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453 (or 2433 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 42113808 is about 6489.5152361328. The cubic root of 42113808 is about 347.9163492955.

The spelling of 42113808 in words is "forty-two million, one hundred thirteen thousand, eight hundred eight".