42008801 has 8 divisors (see below), whose sum is σ = 43632360. Its totient is φ = 40411008.

The previous prime is 42008797. The next prime is 42008843. The reversal of 42008801 is 10880024.

It can be written as a sum of positive squares in 4 ways, for example, as 9461776 + 32547025 = 3076^2 + 5705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42008801 - 2² = 42008797 is a prime.

It is a super-2 number, since 2×42008801² = 3529478722915202, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42008881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3086 + ... + 9671.

It is an arithmetic number, because the mean of its divisors is an integer number (5454045).

Almost surely, 2^42008801 is an apocalyptic number.

It is an amenable number.

42008801 is a deficient number, since it is larger than the sum of its proper divisors (1623559).

42008801 is a wasteful number, since it uses less digits than its factorization.

42008801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12883.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 42008801 is about 6481.4196747318. The cubic root of 42008801 is about 347.6269425632.

Adding to 42008801 its reverse (10880024), we get a palindrome (52888825).

The spelling of 42008801 in words is "forty-two million, eight thousand, eight hundred one".