42330431 has 8 divisors (see below), whose sum is σ = 49731024. Its totient is φ = 35521920.

The previous prime is 42330427. The next prime is 42330439. The reversal of 42330431 is 13403324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42330431 - 2² = 42330427 is a prime.

It is a super-2 number, since 2×42330431² = 3583730777291522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42330439) 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, 147866 + ... + 148151.

It is an arithmetic number, because the mean of its divisors is an integer number (6216378).

Almost surely, 2^42330431 is an apocalyptic number.

42330431 is a deficient number, since it is larger than the sum of its proper divisors (7400593).

42330431 is a wasteful number, since it uses less digits than its factorization.

42330431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296041.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 42330431 is about 6506.1840582633. The cubic root of 42330431 is about 348.5118612539.

Adding to 42330431 its reverse (13403324), we get a palindrome (55733755).

The spelling of 42330431 in words is "forty-two million, three hundred thirty thousand, four hundred thirty-one".