42630730 has 32 divisors (see below), whose sum is σ = 84789504. Its totient is φ = 15350016.

The previous prime is 42630727. The next prime is 42630779. The reversal of 42630730 is 3703624.

42630730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42630695 and 42630704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542 + ... + 9361.

It is an arithmetic number, because the mean of its divisors is an integer number (2649672).

Almost surely, 2^42630730 is an apocalyptic number.

42630730 is a deficient number, since it is larger than the sum of its proper divisors (42158774).

42630730 is a wasteful number, since it uses less digits than its factorization.

42630730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10950.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 42630730 is about 6529.2212399336. The cubic root of 42630730 is about 349.3340534320.

The spelling of 42630730 in words is "forty-two million, six hundred thirty thousand, seven hundred thirty".