42045234 has 48 divisors (see below), whose sum is σ = 106720416. Its totient is φ = 10920000.

The previous prime is 42045217. The next prime is 42045239. The reversal of 42045234 is 43254024.

It is a super-2 number, since 2×42045234² = 3535603404229512, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42045239) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 3267 + ... + 9734.

It is an arithmetic number, because the mean of its divisors is an integer number (2223342).

Almost surely, 2^42045234 is an apocalyptic number.

42045234 is an abundant number, since it is smaller than the sum of its proper divisors (64675182).

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

42045234 is a wasteful number, since it uses less digits than its factorization.

42045234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13031 (or 13024 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42045234 is about 6484.2296381297. The cubic root of 42045234 is about 347.7274090726.

Adding to 42045234 its reverse (43254024), we get a palindrome (85299258).

It can be divided in two parts, 420 and 45234, that added together give a palindrome (45654).

The spelling of 42045234 in words is "forty-two million, forty-five thousand, two hundred thirty-four".