42401017 has 4 divisors (see below), whose sum is σ = 43033936. Its totient is φ = 41768100.

The previous prime is 42400991. The next prime is 42401033. The reversal of 42401017 is 71010424.

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 42401017 - 2⁷ = 42400889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42400985 and 42401003.

It is not an unprimeable number, because it can be changed into a prime (42401717) 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, 316359 + ... + 316492.

It is an arithmetic number, because the mean of its divisors is an integer number (10758484).

Almost surely, 2^42401017 is an apocalyptic number.

It is an amenable number.

42401017 is a deficient number, since it is larger than the sum of its proper divisors (632919).

42401017 is an equidigital number, since it uses as much as digits as its factorization.

42401017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632918.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 42401017 is about 6511.6063302383. The cubic root of 42401017 is about 348.7054682074.

The spelling of 42401017 in words is "forty-two million, four hundred one thousand, seventeen".