42745430 has 64 divisors (see below), whose sum is σ = 95800320. Its totient is φ = 13371264.

The previous prime is 42745357. The next prime is 42745433. The reversal of 42745430 is 3454724.

42745430 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 = 42745393 and 42745402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42745433) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 97151 + ... + 97589.

It is an arithmetic number, because the mean of its divisors is an integer number (1496880).

Almost surely, 2^42745430 is an apocalyptic number.

42745430 is an abundant number, since it is smaller than the sum of its proper divisors (53054890).

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

42745430 is a wasteful number, since it uses less digits than its factorization.

42745430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 42745430 is about 6537.9989293361. The cubic root of 42745430 is about 349.6470728122.

The spelling of 42745430 in words is "forty-two million, seven hundred forty-five thousand, four hundred thirty".