421464331 has 4 divisors (see below), whose sum is σ = 422526352. Its totient is φ = 420402312.

The previous prime is 421464301. The next prime is 421464343. The reversal of 421464331 is 133464124.

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 421464331 - 2²³ = 413075723 is a prime.

It is a super-2 number, since 2×421464331² = 355264364610555122, 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 421464331.

It is not an unprimeable number, because it can be changed into a prime (421464301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530415 + ... + 531208.

It is an arithmetic number, because the mean of its divisors is an integer number (105631588).

Almost surely, 2^421464331 is an apocalyptic number.

421464331 is a deficient number, since it is larger than the sum of its proper divisors (1062021).

421464331 is a wasteful number, since it uses less digits than its factorization.

421464331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062020.

The product of its digits is 6912, while the sum is 28.

The square root of 421464331 is about 20529.5964646166. The cubic root of 421464331 is about 749.7565615848.

The spelling of 421464331 in words is "four hundred twenty-one million, four hundred sixty-four thousand, three hundred thirty-one".