42306331 has 8 divisors (see below), whose sum is σ = 46069200. Its totient is φ = 38697120.

The previous prime is 42306307. The next prime is 42306343. The reversal of 42306331 is 13360324.

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 42306331 - 2⁷ = 42306203 is a prime.

It is a super-2 number, since 2×42306331² = 3579651285363122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42306371) 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, 37840 + ... + 38941.

It is an arithmetic number, because the mean of its divisors is an integer number (5758650).

Almost surely, 2^42306331 is an apocalyptic number.

42306331 is a deficient number, since it is larger than the sum of its proper divisors (3762869).

42306331 is a wasteful number, since it uses less digits than its factorization.

42306331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76829.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 42306331 is about 6504.3317104834. The cubic root of 42306331 is about 348.4457092357.

Adding to 42306331 its reverse (13360324), we get a palindrome (55666655).

The spelling of 42306331 in words is "forty-two million, three hundred six thousand, three hundred thirty-one".