42136684 has 12 divisors (see below), whose sum is σ = 75538008. Its totient is φ = 20554400.

The previous prime is 42136663. The next prime is 42136697. The reversal of 42136684 is 48663124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128302 + ... + 128629.

It is an arithmetic number, because the mean of its divisors is an integer number (6294834).

Almost surely, 2^42136684 is an apocalyptic number.

It is an amenable number.

42136684 is a deficient number, since it is larger than the sum of its proper divisors (33401324).

42136684 is a wasteful number, since it uses less digits than its factorization.

42136684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256976 (or 256974 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 42136684 is about 6491.2775321966. The cubic root of 42136684 is about 347.9793333391.

The spelling of 42136684 in words is "forty-two million, one hundred thirty-six thousand, six hundred eighty-four".