38041021 has 4 divisors (see below), whose sum is σ = 40043200. Its totient is φ = 36038844.

The previous prime is 38041013. The next prime is 38041027. The reversal of 38041021 is 12014083.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12014083 = 79 ⋅152077.

It is a cyclic number.

It is not a de Polignac number, because 38041021 - 2³ = 38041013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 2002159 = 38041021 / (3 + 8 + 0 + 4 + 1 + 0 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38041021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38041027) 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, 1001061 + ... + 1001098.

It is an arithmetic number, because the mean of its divisors is an integer number (10010800).

Almost surely, 2^38041021 is an apocalyptic number.

It is an amenable number.

38041021 is a deficient number, since it is larger than the sum of its proper divisors (2002179).

38041021 is a wasteful number, since it uses less digits than its factorization.

38041021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002178.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 38041021 is about 6167.7403479719. The cubic root of 38041021 is about 336.3184722568.

The spelling of 38041021 in words is "thirty-eight million, forty-one thousand, twenty-one".