60406221 has 16 divisors (see below), whose sum is σ = 81522944. Its totient is φ = 39783744.

The previous prime is 60406207. The next prime is 60406223. The reversal of 60406221 is 12260406.

It is a happy number.

It is not a de Polignac number, because 60406221 - 2¹⁰ = 60405197 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 (60406223) 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, 130236 + ... + 130698.

It is an arithmetic number, because the mean of its divisors is an integer number (5095184).

Almost surely, 2^60406221 is an apocalyptic number.

It is an amenable number.

60406221 is a deficient number, since it is larger than the sum of its proper divisors (21116723).

60406221 is a wasteful number, since it uses less digits than its factorization.

60406221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 60406221 is about 7772.1439127180. The cubic root of 60406221 is about 392.3682785173.

Adding to 60406221 its reverse (12260406), we get a palindrome (72666627).

The spelling of 60406221 in words is "sixty million, four hundred six thousand, two hundred twenty-one".