464457221 has 16 divisors (see below), whose sum is σ = 514833408. Its totient is φ = 417043200.

The previous prime is 464457197. The next prime is 464457229. The reversal of 464457221 is 122754464.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 464457221 - 2⁶ = 464457157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464457229) 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, 31211 + ... + 43623.

It is an arithmetic number, because the mean of its divisors is an integer number (32177088).

Almost surely, 2^464457221 is an apocalyptic number.

It is an amenable number.

464457221 is a deficient number, since it is larger than the sum of its proper divisors (50376187).

464457221 is a wasteful number, since it uses less digits than its factorization.

464457221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12532.

The product of its digits is 53760, while the sum is 35.

The square root of 464457221 is about 21551.2695913721. The cubic root of 464457221 is about 774.4295328780.

The spelling of 464457221 in words is "four hundred sixty-four million, four hundred fifty-seven thousand, two hundred twenty-one".