4660404421 has 4 divisors (see below), whose sum is σ = 4701647052. Its totient is φ = 4619161792.

The previous prime is 4660404409. The next prime is 4660404431. The reversal of 4660404421 is 1244040664.

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 1316673796 + 3343730625 = 36286^2 + 57825^2 .

It is a cyclic number.

It is not a de Polignac number, because 4660404421 - 2²⁹ = 4123533509 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4660404431) 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, 20621146 + ... + 20621371.

It is an arithmetic number, because the mean of its divisors is an integer number (1175411763).

Almost surely, 2^4660404421 is an apocalyptic number.

It is an amenable number.

4660404421 is a deficient number, since it is larger than the sum of its proper divisors (41242631).

4660404421 is a wasteful number, since it uses less digits than its factorization.

4660404421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41242630.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 4660404421 is about 68267.1547744594. The cubic root of 4660404421 is about 1670.3514888784.

The spelling of 4660404421 in words is "four billion, six hundred sixty million, four hundred four thousand, four hundred twenty-one".