464640111 has 32 divisors (see below), whose sum is σ = 753493440. Its totient is φ = 281232000.

The previous prime is 464640091. The next prime is 464640217. The reversal of 464640111 is 111046464.

464640111 is a `hidden beast` number, since 4 + 6 + 4 + 640 + 1 + 11 = 666.

It is not a de Polignac number, because 464640111 - 2²⁵ = 431085679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464648111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10561 + ... + 32261.

It is an arithmetic number, because the mean of its divisors is an integer number (23546670).

Almost surely, 2^464640111 is an apocalyptic number.

464640111 is a deficient number, since it is larger than the sum of its proper divisors (288853329).

464640111 is a wasteful number, since it uses less digits than its factorization.

464640111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21784 (or 21778 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 464640111 is about 21555.5123112396. The cubic root of 464640111 is about 774.5311689557.

Adding to 464640111 its reverse (111046464), we get a palindrome (575686575).

The spelling of 464640111 in words is "four hundred sixty-four million, six hundred forty thousand, one hundred eleven".