464575221 has 48 divisors (see below), whose sum is σ = 747601920. Its totient is φ = 275652000.

The previous prime is 464575169. The next prime is 464575297. The reversal of 464575221 is 122575464.

It is a happy number.

464575221 is a `hidden beast` number, since 4 + 64 + 575 + 2 + 21 = 666.

It is not a de Polignac number, because 464575221 - 2⁷ = 464575093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464575121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1493656 + ... + 1493966.

It is an arithmetic number, because the mean of its divisors is an integer number (15575040).

Almost surely, 2^464575221 is an apocalyptic number.

It is an amenable number.

464575221 is a deficient number, since it is larger than the sum of its proper divisors (283026699).

464575221 is a wasteful number, since it uses less digits than its factorization.

464575221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598 (or 595 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 464575221 is about 21554.0070752517. The cubic root of 464575221 is about 774.4951111795.

The spelling of 464575221 in words is "four hundred sixty-four million, five hundred seventy-five thousand, two hundred twenty-one".