464423781 has 8 divisors (see below), whose sum is σ = 619398784. Its totient is φ = 309532320.

The previous prime is 464423753. The next prime is 464423801. The reversal of 464423781 is 187324464.

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

It is not a de Polignac number, because 464423781 - 2¹¹ = 464421733 is a prime.

It is a super-2 number, since 2×464423781² = 431378896716671922, 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 (464423711) 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 7 ways as a sum of consecutive naturals, for example, 6496 + ... + 31161.

It is an arithmetic number, because the mean of its divisors is an integer number (77424848).

Almost surely, 2^464423781 is an apocalyptic number.

It is an amenable number.

464423781 is a deficient number, since it is larger than the sum of its proper divisors (154975003).

464423781 is a wasteful number, since it uses less digits than its factorization.

464423781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41771.

The product of its digits is 129024, while the sum is 39.

The square root of 464423781 is about 21550.4937530443. The cubic root of 464423781 is about 774.4109466344.

The spelling of 464423781 in words is "four hundred sixty-four million, four hundred twenty-three thousand, seven hundred eighty-one".