42351630 has 16 divisors (see below), whose sum is σ = 101643984. Its totient is φ = 11293760.

The previous prime is 42351613. The next prime is 42351637. The reversal of 42351630 is 3615324.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 42351630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42351637) 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, 705831 + ... + 705890.

It is an arithmetic number, because the mean of its divisors is an integer number (6352749).

Almost surely, 2^42351630 is an apocalyptic number.

42351630 is an abundant number, since it is smaller than the sum of its proper divisors (59292354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42351630 is a wasteful number, since it uses less digits than its factorization.

42351630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411731.

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

The square root of 42351630 is about 6507.8129966987. The cubic root of 42351630 is about 348.5700295723.

Adding to 42351630 its reverse (3615324), we get a palindrome (45966954).

The spelling of 42351630 in words is "forty-two million, three hundred fifty-one thousand, six hundred thirty".