464081939 has 4 divisors (see below), whose sum is σ = 472838256. Its totient is φ = 455325624.

The previous prime is 464081921. The next prime is 464081953. The reversal of 464081939 is 939180464.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 464081939 - 2²⁴ = 447304723 is a prime.

It is a super-2 number, since 2×464081939² = 430744092211999442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 464081939.

It is not an unprimeable number, because it can be changed into a prime (464081039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4378079 + ... + 4378184.

It is an arithmetic number, because the mean of its divisors is an integer number (118209564).

Almost surely, 2^464081939 is an apocalyptic number.

464081939 is a deficient number, since it is larger than the sum of its proper divisors (8756317).

464081939 is an equidigital number, since it uses as much as digits as its factorization.

464081939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8756316.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 464081939 is about 21542.5611058667. The cubic root of 464081939 is about 774.2208966733.

The spelling of 464081939 in words is "four hundred sixty-four million, eighty-one thousand, nine hundred thirty-nine".