62642138 has 8 divisors (see below), whose sum is σ = 101191188. Its totient is φ = 28911744.

The previous prime is 62642057. The next prime is 62642141. The reversal of 62642138 is 83124626.

It can be written as a sum of positive squares in 2 ways, for example, as 62615569 + 26569 = 7913^2 + 163^2 .

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

It is a super-2 number, since 2×62642138² = 7848074906422088, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204631 + ... + 1204682.

Almost surely, 2^62642138 is an apocalyptic number.

62642138 is a deficient number, since it is larger than the sum of its proper divisors (38549050).

62642138 is a wasteful number, since it uses less digits than its factorization.

62642138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409328.

The product of its digits is 13824, while the sum is 32.

The square root of 62642138 is about 7914.6786416127. The cubic root of 62642138 is about 397.1508752365.

The spelling of 62642138 in words is "sixty-two million, six hundred forty-two thousand, one hundred thirty-eight".