464581 has 6 divisors (see below), whose sum is σ = 503250. Its totient is φ = 428688.

The previous prime is 464561. The next prime is 464587. The reversal of 464581 is 185464.

It can be written as a sum of positive squares in 3 ways, for example, as 21025 + 443556 = 145^2 + 666^2 .

It is not a de Polignac number, because 464581 - 2⁵ = 464549 is a prime.

It is a super-2 number, since 2×464581² = 431671011122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1206 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (83875).

2⁴⁶⁴⁵⁸¹ is an apocalyptic number.

It is an amenable number.

464581 is a deficient number, since it is larger than the sum of its proper divisors (38669).

464581 is a wasteful number, since it uses less digits than its factorization.

464581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775 (or 2762 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 464581 is about 681.6017899038. The cubic root of 464581 is about 77.4498322564.

The spelling of 464581 in words is "four hundred sixty-four thousand, five hundred eighty-one".