42230340 has 36 divisors (see below), whose sum is σ = 128099244. Its totient is φ = 11261376.

The previous prime is 42230327. The next prime is 42230381. The reversal of 42230340 is 4303224.

It can be written as a sum of positive squares in 2 ways, for example, as 4260096 + 37970244 = 2064^2 + 6162^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117127 + ... + 117486.

Almost surely, 2^42230340 is an apocalyptic number.

It is an amenable number.

42230340 is an abundant number, since it is smaller than the sum of its proper divisors (85868904).

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

42230340 is a wasteful number, since it uses less digits than its factorization.

42230340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234628 (or 234623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 42230340 is about 6498.4875163379. The cubic root of 42230340 is about 348.2369571263.

Adding to 42230340 its reverse (4303224), we get a palindrome (46533564).

The spelling of 42230340 in words is "forty-two million, two hundred thirty thousand, three hundred forty".