42730484 has 12 divisors (see below), whose sum is σ = 75106500. Its totient is φ = 21271488.

The previous prime is 42730463. The next prime is 42730489. The reversal of 42730484 is 48403724.

It can be written as a sum of positive squares in 2 ways, for example, as 34550884 + 8179600 = 5878^2 + 2860^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42730484.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42730489) 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 3 ways as a sum of consecutive naturals, for example, 22409 + ... + 24240.

It is an arithmetic number, because the mean of its divisors is an integer number (6258875).

Almost surely, 2^42730484 is an apocalyptic number.

It is an amenable number.

42730484 is a deficient number, since it is larger than the sum of its proper divisors (32376016).

42730484 is a wasteful number, since it uses less digits than its factorization.

42730484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46882 (or 46880 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 42730484 is about 6536.8558191228. The cubic root of 42730484 is about 349.6063165306.

The spelling of 42730484 in words is "forty-two million, seven hundred thirty thousand, four hundred eighty-four".