42630401 has 8 divisors (see below), whose sum is σ = 47763264. Its totient is φ = 37707120.

The previous prime is 42630397. The next prime is 42630403. The reversal of 42630401 is 10403624.

It is a happy number.

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

It is not a de Polignac number, because 42630401 - 2² = 42630397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42630403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51965 + ... + 52778.

It is an arithmetic number, because the mean of its divisors is an integer number (5970408).

Almost surely, 2^42630401 is an apocalyptic number.

It is an amenable number.

42630401 is a deficient number, since it is larger than the sum of its proper divisors (5132863).

42630401 is a wasteful number, since it uses less digits than its factorization.

42630401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104791.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 42630401 is about 6529.1960454561. The cubic root of 42630401 is about 349.3331547751. Note that the first 3 decimals are identical.

The spelling of 42630401 in words is "forty-two million, six hundred thirty thousand, four hundred one".