421012244 has 6 divisors (see below), whose sum is σ = 736771434. Its totient is φ = 210506120.

The previous prime is 421012237. The next prime is 421012253. The reversal of 421012244 is 442210124.

It can be written as a sum of positive squares in only one way, i.e., 343360900 + 77651344 = 18530^2 + 8812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52626527 + ... + 52626534.

It is an arithmetic number, because the mean of its divisors is an integer number (122795239).

Almost surely, 2^421012244 is an apocalyptic number.

It is an amenable number.

421012244 is a deficient number, since it is larger than the sum of its proper divisors (315759190).

421012244 is a wasteful number, since it uses less digits than its factorization.

421012244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105253065 (or 105253063 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 421012244 is about 20518.5828945373. The cubic root of 421012244 is about 749.4883882691.

Adding to 421012244 its reverse (442210124), we get a palindrome (863222368).

The spelling of 421012244 in words is "four hundred twenty-one million, twelve thousand, two hundred forty-four".