42330664 has 32 divisors (see below), whose sum is σ = 82545120. Its totient is φ = 20333376.

The previous prime is 42330571. The next prime is 42330677. The reversal of 42330664 is 46603324.

42330664 = 282² + 283² + ... + 530².

It is a super-2 number, since 2×42330664² = 3583770229361792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23707 + ... + 25429.

It is an arithmetic number, because the mean of its divisors is an integer number (2579535).

Almost surely, 2^42330664 is an apocalyptic number.

It is an amenable number.

42330664 is a deficient number, since it is larger than the sum of its proper divisors (40214456).

42330664 is a wasteful number, since it uses less digits than its factorization.

42330664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 42330664 is about 6506.2019642799. The cubic root of 42330664 is about 348.5125006923.

Adding to 42330664 its reverse (46603324), we get a palindrome (88933988).

The spelling of 42330664 in words is "forty-two million, three hundred thirty thousand, six hundred sixty-four".