10270421 has 16 divisors (see below), whose sum is σ = 12144000. Its totient is φ = 8503488.

The previous prime is 10270417. The next prime is 10270427. The reversal of 10270421 is 12407201.

It is not a de Polignac number, because 10270421 - 2² = 10270417 is a prime.

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 10270421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10270427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44735 + ... + 44963.

It is an arithmetic number, because the mean of its divisors is an integer number (759000).

Almost surely, 2^10270421 is an apocalyptic number.

It is an amenable number.

10270421 is a deficient number, since it is larger than the sum of its proper divisors (1873579).

10270421 is a wasteful number, since it uses less digits than its factorization.

10270421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 10270421 is about 3204.7497562212. The cubic root of 10270421 is about 217.3682365709.

Adding to 10270421 its reverse (12407201), we get a palindrome (22677622).

The spelling of 10270421 in words is "ten million, two hundred seventy thousand, four hundred twenty-one".