42401001 has 8 divisors (see below), whose sum is σ = 58062784. Its totient is φ = 27503280.

The previous prime is 42400991. The next prime is 42401033. The reversal of 42401001 is 10010424.

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

It is not a de Polignac number, because 42401001 - 2¹⁹ = 41876713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42401071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190885 + ... + 191106.

It is an arithmetic number, because the mean of its divisors is an integer number (7257848).

Almost surely, 2^42401001 is an apocalyptic number.

It is an amenable number.

42401001 is a deficient number, since it is larger than the sum of its proper divisors (15661783).

42401001 is a wasteful number, since it uses less digits than its factorization.

42401001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382031.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 42401001 is about 6511.6051016627. The cubic root of 42401001 is about 348.7054243461.

Adding to 42401001 its reverse (10010424), we get a palindrome (52411425).

The spelling of 42401001 in words is "forty-two million, four hundred one thousand, one".