42430240 has 48 divisors (see below), whose sum is σ = 100631160. Its totient is φ = 16906240.

The previous prime is 42430139. The next prime is 42430253. The reversal of 42430240 is 4203424.

It can be written as a sum of positive squares in 4 ways, for example, as 35856144 + 6574096 = 5988^2 + 2564^2 .

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, 81180 + ... + 81700.

Almost surely, 2^42430240 is an apocalyptic number.

42430240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42430240 is an abundant number, since it is smaller than the sum of its proper divisors (58200920).

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

42430240 is a wasteful number, since it uses less digits than its factorization.

42430240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 42430240 is about 6513.8498601058. The cubic root of 42430240 is about 348.7855596805.

Adding to 42430240 its reverse (4203424), we get a palindrome (46633664).

The spelling of 42430240 in words is "forty-two million, four hundred thirty thousand, two hundred forty".