10424021 has 4 divisors (see below), whose sum is σ = 10783500. Its totient is φ = 10064544.

The previous prime is 10423999. The next prime is 10424039. The reversal of 10424021 is 12042401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3591025 + 6832996 = 1895^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 10424021 - 2⁶ = 10423957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10423987 and 10424005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10424041) 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, 179696 + ... + 179753.

It is an arithmetic number, because the mean of its divisors is an integer number (2695875).

Almost surely, 2^10424021 is an apocalyptic number.

It is an amenable number.

10424021 is a deficient number, since it is larger than the sum of its proper divisors (359479).

10424021 is an equidigital number, since it uses as much as digits as its factorization.

10424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359478.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 10424021 is about 3228.6252492353. The cubic root of 10424021 is about 218.4465009086.

Adding to 10424021 its reverse (12042401), we get a palindrome (22466422).

The spelling of 10424021 in words is "ten million, four hundred twenty-four thousand, twenty-one".