42630447 has 8 divisors (see below), whose sum is σ = 58227120. Its totient is φ = 27727040.

The previous prime is 42630439. The next prime is 42630449. The reversal of 42630447 is 74403624.

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

It is a cyclic number.

It is not a de Polignac number, because 42630447 - 2³ = 42630439 is a prime.

It is a super-2 number, since 2×42630447² = 3634710022839618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630449) 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, 173172 + ... + 173417.

It is an arithmetic number, because the mean of its divisors is an integer number (7278390).

Almost surely, 2^42630447 is an apocalyptic number.

42630447 is a deficient number, since it is larger than the sum of its proper divisors (15596673).

42630447 is a wasteful number, since it uses less digits than its factorization.

42630447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346633.

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 42630447 is about 6529.1995680941. The cubic root of 42630447 is about 349.3332804235. Note that the first 3 decimals are identical.

The spelling of 42630447 in words is "forty-two million, six hundred thirty thousand, four hundred forty-seven".