464442081 has 4 divisors (see below), whose sum is σ = 619256112. Its totient is φ = 309628052.

The previous prime is 464442079. The next prime is 464442103. The reversal of 464442081 is 180244464.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 464442081 - 2¹ = 464442079 is a prime.

It is a super-2 number, since 2×464442081² = 431412893207221122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (464442071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77407011 + ... + 77407016.

It is an arithmetic number, because the mean of its divisors is an integer number (154814028).

Almost surely, 2^464442081 is an apocalyptic number.

It is an amenable number.

464442081 is a deficient number, since it is larger than the sum of its proper divisors (154814031).

464442081 is a wasteful number, since it uses less digits than its factorization.

464442081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154814030.

The product of its (nonzero) digits is 24576, while the sum is 33.

The square root of 464442081 is about 21550.9183331013. The cubic root of 464442081 is about 774.4211180445.

The spelling of 464442081 in words is "four hundred sixty-four million, four hundred forty-two thousand, eighty-one".