42142332 has 12 divisors (see below), whose sum is σ = 98332136. Its totient is φ = 14047440.

The previous prime is 42142327. The next prime is 42142339. The reversal of 42142332 is 23324124.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×42142332² = 3551952292796448, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 42142299 and 42142308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42142339) 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 3 ways as a sum of consecutive naturals, for example, 1755919 + ... + 1755942.

Almost surely, 2^42142332 is an apocalyptic number.

It is an amenable number.

42142332 is an abundant number, since it is smaller than the sum of its proper divisors (56189804).

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

42142332 is a wasteful number, since it uses less digits than its factorization.

42142332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511868 (or 3511866 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 42142332 is about 6491.7125629529. The cubic root of 42142332 is about 347.9948803580.

Adding to 42142332 its reverse (23324124), we get a palindrome (65466456).

The spelling of 42142332 in words is "forty-two million, one hundred forty-two thousand, three hundred thirty-two".