38800021 has 8 divisors (see below), whose sum is σ = 41865824. Its totient is φ = 35745840.

The previous prime is 38799991. The next prime is 38800037. The reversal of 38800021 is 12000883.

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

It is not a de Polignac number, because 38800021 - 2¹¹ = 38797973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38799965 and 38800001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38804021) 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, 4810 + ... + 10036.

It is an arithmetic number, because the mean of its divisors is an integer number (5233228).

Almost surely, 2^38800021 is an apocalyptic number.

It is an amenable number.

38800021 is a deficient number, since it is larger than the sum of its proper divisors (3065803).

38800021 is a wasteful number, since it uses less digits than its factorization.

38800021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 38800021 is about 6228.9662866322. The cubic root of 38800021 is about 338.5405173513.

The spelling of 38800021 in words is "thirty-eight million, eight hundred thousand, twenty-one".