42347684 has 24 divisors (see below), whose sum is σ = 76892088. Its totient is φ = 20390400.

The previous prime is 42347681. The next prime is 42347717. The reversal of 42347684 is 48674324.

It can be written as a sum of positive squares in 4 ways, for example, as 24285184 + 18062500 = 4928^2 + 4250^2 .

It is not an unprimeable number, because it can be changed into a prime (42347681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13532 + ... + 16364.

It is an arithmetic number, because the mean of its divisors is an integer number (3203837).

Almost surely, 2^42347684 is an apocalyptic number.

It is an amenable number.

42347684 is a deficient number, since it is larger than the sum of its proper divisors (34544404).

42347684 is a wasteful number, since it uses less digits than its factorization.

42347684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975 (or 2973 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 42347684 is about 6507.5098155900. The cubic root of 42347684 is about 348.5592035423.

The spelling of 42347684 in words is "forty-two million, three hundred forty-seven thousand, six hundred eighty-four".