42430761 has 12 divisors (see below), whose sum is σ = 61413300. Its totient is φ = 28229760.

The previous prime is 42430753. The next prime is 42430763. The reversal of 42430761 is 16703424.

It can be written as a sum of positive squares in 2 ways, for example, as 24206400 + 18224361 = 4920^2 + 4269^2 .

It is not a de Polignac number, because 42430761 - 2³ = 42430753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42430763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (5117775).

Almost surely, 2^42430761 is an apocalyptic number.

It is an amenable number.

42430761 is a deficient number, since it is larger than the sum of its proper divisors (18982539).

42430761 is a wasteful number, since it uses less digits than its factorization.

42430761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9576 (or 9573 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 42430761 is about 6513.8898516938. The cubic root of 42430761 is about 348.7869872514.

The spelling of 42430761 in words is "forty-two million, four hundred thirty thousand, seven hundred sixty-one".