38631005 has 16 divisors (see below), whose sum is σ = 53099904. Its totient is φ = 26429760.

The previous prime is 38630981. The next prime is 38631031. The reversal of 38631005 is 50013683.

It is a de Polignac number, because none of the positive numbers 2^k-38631005 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19019 + ... + 20951.

It is an arithmetic number, because the mean of its divisors is an integer number (3318744).

Almost surely, 2^38631005 is an apocalyptic number.

38631005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38631005 is a deficient number, since it is larger than the sum of its proper divisors (14468899).

38631005 is a wasteful number, since it uses less digits than its factorization.

38631005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 38631005 is about 6215.3845416032. The cubic root of 38631005 is about 338.0482319742.

Adding to 38631005 its reverse (50013683), we get a palindrome (88644688).

The spelling of 38631005 in words is "thirty-eight million, six hundred thirty-one thousand, five".