10238021 has 4 divisors (see below), whose sum is σ = 10249344. Its totient is φ = 10226700.

The previous prime is 10238009. The next prime is 10238023. The reversal of 10238021 is 12083201.

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-10238021 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 (10238023) 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, 4175 + ... + 6156.

It is an arithmetic number, because the mean of its divisors is an integer number (2562336).

Almost surely, 2^10238021 is an apocalyptic number.

It is an amenable number.

10238021 is a deficient number, since it is larger than the sum of its proper divisors (11323).

10238021 is an equidigital number, since it uses as much as digits as its factorization.

10238021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11322.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 10238021 is about 3199.6907663085. The cubic root of 10238021 is about 217.1394192793.

The spelling of 10238021 in words is "ten million, two hundred thirty-eight thousand, twenty-one".