42143712 has 48 divisors (see below), whose sum is σ = 119140560. Its totient is φ = 12966912.

The previous prime is 42143707. The next prime is 42143713. The reversal of 42143712 is 21734124.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×42143712² = 3552184922277888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143713) 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 7 ways as a sum of consecutive naturals, for example, 15637 + ... + 18132.

It is an arithmetic number, because the mean of its divisors is an integer number (2482095).

Almost surely, 2^42143712 is an apocalyptic number.

It is an amenable number.

42143712 is an abundant number, since it is smaller than the sum of its proper divisors (76996848).

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

42143712 is a wasteful number, since it uses less digits than its factorization.

42143712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33795 (or 33787 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 42143712 is about 6491.8188514468. The cubic root of 42143712 is about 347.9986788165.

Adding to 42143712 its reverse (21734124), we get a palindrome (63877836).

The spelling of 42143712 in words is "forty-two million, one hundred forty-three thousand, seven hundred twelve".