42030340 has 24 divisors (see below), whose sum is σ = 96288192. Its totient is φ = 15283680.

The previous prime is 42030319. The next prime is 42030343. The reversal of 42030340 is 4303024.

It is not an unprimeable number, because it can be changed into a prime (42030343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95304 + ... + 95743.

It is an arithmetic number, because the mean of its divisors is an integer number (4012008).

Almost surely, 2^42030340 is an apocalyptic number.

It is an amenable number.

42030340 is an abundant number, since it is smaller than the sum of its proper divisors (54257852).

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

42030340 is a wasteful number, since it uses less digits than its factorization.

42030340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191067 (or 191065 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 42030340 is about 6483.0810576454. The cubic root of 42030340 is about 347.6863448568.

Adding to 42030340 its reverse (4303024), we get a palindrome (46333364).

The spelling of 42030340 in words is "forty-two million, thirty thousand, three hundred forty".