38800421 has 4 divisors (see below), whose sum is σ = 42327744. Its totient is φ = 35273100.

The previous prime is 38800393. The next prime is 38800459. The reversal of 38800421 is 12400883.

38800421 = 734² + 735² + ... + 799².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38800421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38800481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1763645 + ... + 1763666.

It is an arithmetic number, because the mean of its divisors is an integer number (10581936).

Almost surely, 2^38800421 is an apocalyptic number.

It is an amenable number.

38800421 is a deficient number, since it is larger than the sum of its proper divisors (3527323).

38800421 is a wasteful number, since it uses less digits than its factorization.

38800421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3527322.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 38800421 is about 6228.9983946057. The cubic root of 38800421 is about 338.5416807162.

The spelling of 38800421 in words is "thirty-eight million, eight hundred thousand, four hundred twenty-one".