421022041 has 12 divisors (see below), whose sum is σ = 464134356. Its totient is φ = 381624320.

The previous prime is 421022023. The next prime is 421022057. The reversal of 421022041 is 140220124.

It can be written as a sum of positive squares in 2 ways, for example, as 163098441 + 257923600 = 12771^2 + 16060^2 .

It is not a de Polignac number, because 421022041 - 2⁵ = 421022009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421022011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37785 + ... + 47641.

It is an arithmetic number, because the mean of its divisors is an integer number (38677863).

Almost surely, 2^421022041 is an apocalyptic number.

It is an amenable number.

421022041 is a deficient number, since it is larger than the sum of its proper divisors (43112315).

421022041 is a wasteful number, since it uses less digits than its factorization.

421022041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10232 (or 10221 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 421022041 is about 20518.8216279590. The cubic root of 421022041 is about 749.4942017824.

Adding to 421022041 its reverse (140220124), we get a palindrome (561242165).

The spelling of 421022041 in words is "four hundred twenty-one million, twenty-two thousand, forty-one".