464556381 has 16 divisors (see below), whose sum is σ = 624495744. Its totient is φ = 307169984.

The previous prime is 464556371. The next prime is 464556401. The reversal of 464556381 is 183655464.

It is a cyclic number.

It is not a de Polignac number, because 464556381 - 2⁶ = 464556317 is a prime.

It is a super-2 number, since 2×464556381² = 431625262255634322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464556371) 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, 288280 + ... + 289886.

It is an arithmetic number, because the mean of its divisors is an integer number (39030984).

Almost surely, 2^464556381 is an apocalyptic number.

It is an amenable number.

464556381 is a deficient number, since it is larger than the sum of its proper divisors (159939363).

464556381 is a wasteful number, since it uses less digits than its factorization.

464556381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340.

The product of its digits is 345600, while the sum is 42.

The square root of 464556381 is about 21553.5700291158. The cubic root of 464556381 is about 774.4846416262.

The spelling of 464556381 in words is "four hundred sixty-four million, five hundred fifty-six thousand, three hundred eighty-one".