46430221 has 2 divisors, whose sum is σ = 46430222. Its totient is φ = 46430220.

The previous prime is 46430201. The next prime is 46430233. The reversal of 46430221 is 12203464.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29041321 + 17388900 = 5389^2 + 4170^2 .

It is a cyclic number.

It is not a de Polignac number, because 46430221 - 2¹⁵ = 46397453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 46430192 and 46430201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46430201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23215110 + 23215111.

It is an arithmetic number, because the mean of its divisors is an integer number (23215111).

Almost surely, 2^46430221 is an apocalyptic number.

It is an amenable number.

46430221 is a deficient number, since it is larger than the sum of its proper divisors (1).

46430221 is an equidigital number, since it uses as much as digits as its factorization.

46430221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 46430221 is about 6813.9724830674. The cubic root of 46430221 is about 359.4183534440.

Adding to 46430221 its reverse (12203464), we get a palindrome (58633685).

The spelling of 46430221 in words is "forty-six million, four hundred thirty thousand, two hundred twenty-one".