464447081 has 8 divisors (see below), whose sum is σ = 533313984. Its totient is φ = 396209520.

The previous prime is 464447069. The next prime is 464447101. The reversal of 464447081 is 180744464.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 464447081 - 2⁶ = 464447017 is a prime.

It is a super-2 number, since 2×464447081² = 431422182098841122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (464447041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155750 + ... + 158703.

It is an arithmetic number, because the mean of its divisors is an integer number (66664248).

Almost surely, 2^464447081 is an apocalyptic number.

It is an amenable number.

464447081 is a deficient number, since it is larger than the sum of its proper divisors (68866903).

464447081 is a wasteful number, since it uses less digits than its factorization.

464447081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314671.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 464447081 is about 21551.0343371264. The cubic root of 464447081 is about 774.4238970718.

The spelling of 464447081 in words is "four hundred sixty-four million, four hundred forty-seven thousand, eighty-one".