42016801 has 4 divisors (see below), whose sum is σ = 42049792. Its totient is φ = 41983812.

The previous prime is 42016783. The next prime is 42016813. The reversal of 42016801 is 10861024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42016801 - 2⁵ = 42016769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42016831) 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, 14505 + ... + 17158.

It is an arithmetic number, because the mean of its divisors is an integer number (10512448).

Almost surely, 2^42016801 is an apocalyptic number.

It is an amenable number.

42016801 is a deficient number, since it is larger than the sum of its proper divisors (32991).

42016801 is a wasteful number, since it uses less digits than its factorization.

42016801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32990.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 42016801 is about 6482.0367940949. The cubic root of 42016801 is about 347.6490080904.

Adding to 42016801 its reverse (10861024), we get a palindrome (52877825).

The spelling of 42016801 in words is "forty-two million, sixteen thousand, eight hundred one".