42630351 has 4 divisors (see below), whose sum is σ = 56840472. Its totient is φ = 28420232.

The previous prime is 42630347. The next prime is 42630359. The reversal of 42630351 is 15303624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42630351 - 2² = 42630347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42630359) 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, 7105056 + ... + 7105061.

It is an arithmetic number, because the mean of its divisors is an integer number (14210118).

Almost surely, 2^42630351 is an apocalyptic number.

42630351 is a deficient number, since it is larger than the sum of its proper divisors (14210121).

42630351 is a wasteful number, since it uses less digits than its factorization.

42630351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14210120.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 42630351 is about 6529.1922164997. The cubic root of 42630351 is about 349.3330182007. Note that the first 3 decimals are identical.

Adding to 42630351 its reverse (15303624), we get a palindrome (57933975).

The spelling of 42630351 in words is "forty-two million, six hundred thirty thousand, three hundred fifty-one".