71642038 has 8 divisors (see below), whose sum is σ = 115729488. Its totient is φ = 33065544.

The previous prime is 71642017. The next prime is 71642057. The reversal of 71642038 is 83024617.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377706 + ... + 1377757.

It is an arithmetic number, because the mean of its divisors is an integer number (14466186).

Almost surely, 2^71642038 is an apocalyptic number.

71642038 is a deficient number, since it is larger than the sum of its proper divisors (44087450).

71642038 is a wasteful number, since it uses less digits than its factorization.

71642038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755478.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 71642038 is about 8464.1619786013. The cubic root of 71642038 is about 415.3261828098.

The spelling of 71642038 in words is "seventy-one million, six hundred forty-two thousand, thirty-eight".