42971712 has 56 divisors (see below), whose sum is σ = 129942336. Its totient is φ = 12277248.

The previous prime is 42971683. The next prime is 42971713. The reversal of 42971712 is 21717924.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (42971713) 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, 14643 + ... + 17330.

Almost surely, 2^42971712 is an apocalyptic number.

42971712 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42971712 is an abundant number, since it is smaller than the sum of its proper divisors (86970624).

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

42971712 is a wasteful number, since it uses less digits than its factorization.

42971712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31995 (or 31985 counting only the distinct ones).

The product of its digits is 7056, while the sum is 33.

The square root of 42971712 is about 6555.2812296651. The cubic root of 42971712 is about 350.2629642832.

The spelling of 42971712 in words is "forty-two million, nine hundred seventy-one thousand, seven hundred twelve".