464243421 has 8 divisors (see below), whose sum is σ = 626826880. Its totient is φ = 305577792.

The previous prime is 464243401. The next prime is 464243443. The reversal of 464243421 is 124342464.

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

It is not a de Polignac number, because 464243421 - 2⁵ = 464243389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464243401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 979180 + ... + 979653.

It is an arithmetic number, because the mean of its divisors is an integer number (78353360).

Almost surely, 2^464243421 is an apocalyptic number.

It is an amenable number.

464243421 is a deficient number, since it is larger than the sum of its proper divisors (162583459).

464243421 is a wasteful number, since it uses less digits than its factorization.

464243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958915.

The product of its digits is 18432, while the sum is 30.

The square root of 464243421 is about 21546.3087557939. The cubic root of 464243421 is about 774.3106855879.

Adding to 464243421 its reverse (124342464), we get a palindrome (588585885).

The spelling of 464243421 in words is "four hundred sixty-four million, two hundred forty-three thousand, four hundred twenty-one".