42385770 has 96 divisors (see below), whose sum is σ = 132612480. Its totient is φ = 9175680.

The previous prime is 42385747. The next prime is 42385781. The reversal of 42385770 is 7758324.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 10200 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (1381380).

Almost surely, 2^42385770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42385770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66306240).

42385770 is an abundant number, since it is smaller than the sum of its proper divisors (90226710).

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

42385770 is a wasteful number, since it uses less digits than its factorization.

42385770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3580 (or 3577 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 42385770 is about 6510.4354693062. The cubic root of 42385770 is about 348.6636661465.

The spelling of 42385770 in words is "forty-two million, three hundred eighty-five thousand, seven hundred seventy".