42569730 has 120 divisors (see below), whose sum is σ = 129775932. Its totient is φ = 9680832.

The previous prime is 42569713. The next prime is 42569741. The reversal of 42569730 is 3796524.

It can be written as a sum of positive squares in 2 ways, for example, as 39955041 + 2614689 = 6321^2 + 1617^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 215992 + ... + 216188.

Almost surely, 2^42569730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42569730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64887966).

42569730 is an abundant number, since it is smaller than the sum of its proper divisors (87206202).

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

42569730 is a wasteful number, since it uses less digits than its factorization.

42569730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 42569730 is about 6524.5482602246. The cubic root of 42569730 is about 349.1673540491.

The spelling of 42569730 in words is "forty-two million, five hundred sixty-nine thousand, seven hundred thirty".