42570340 has 24 divisors (see below), whose sum is σ = 89547192. Its totient is φ = 16999680.

The previous prime is 42570337. The next prime is 42570361. The reversal of 42570340 is 4307524.

It can be written as a sum of positive squares in 4 ways, for example, as 268324 + 42302016 = 518^2 + 6504^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13822 + ... + 16618.

It is an arithmetic number, because the mean of its divisors is an integer number (3731133).

Almost surely, 2^42570340 is an apocalyptic number.

It is an amenable number.

42570340 is an abundant number, since it is smaller than the sum of its proper divisors (46976852).

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

42570340 is a wasteful number, since it uses less digits than its factorization.

42570340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3567 (or 3565 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42570340 is about 6524.5950065885. The cubic root of 42570340 is about 349.1690218309.

Adding to 42570340 its reverse (4307524), we get a palindrome (46877864).

The spelling of 42570340 in words is "forty-two million, five hundred seventy thousand, three hundred forty".