42401401 has 4 divisors (see below), whose sum is σ = 48458752. Its totient is φ = 36344052.

The previous prime is 42401399. The next prime is 42401423. The reversal of 42401401 is 10410424.

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 42401401 - 2¹ = 42401399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42401201) 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, 3028665 + ... + 3028678.

It is an arithmetic number, because the mean of its divisors is an integer number (12114688).

Almost surely, 2^42401401 is an apocalyptic number.

It is an amenable number.

42401401 is a deficient number, since it is larger than the sum of its proper divisors (6057351).

42401401 is an equidigital number, since it uses as much as digits as its factorization.

42401401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057350.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 42401401 is about 6511.6358159836. The cubic root of 42401401 is about 348.7065208747.

Adding to 42401401 its reverse (10410424), we get a palindrome (52811825).

The spelling of 42401401 in words is "forty-two million, four hundred one thousand, four hundred one".