421344471 has 8 divisors (see below), whose sum is σ = 566216704. Its totient is φ = 278684280.

The previous prime is 421344463. The next prime is 421344479. The reversal of 421344471 is 174443124.

It is an interprime number because it is at equal distance from previous prime (421344463) and next prime (421344479).

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

It is not a de Polignac number, because 421344471 - 2³ = 421344463 is a prime.

It is a super-3 number, since 3×421344471³ (a number of 27 digits) contains 333 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 (421344479) 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, 552565 + ... + 553326.

It is an arithmetic number, because the mean of its divisors is an integer number (70777088).

Almost surely, 2^421344471 is an apocalyptic number.

421344471 is a deficient number, since it is larger than the sum of its proper divisors (144872233).

421344471 is a wasteful number, since it uses less digits than its factorization.

421344471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106021.

The product of its digits is 10752, while the sum is 30.

The square root of 421344471 is about 20526.6770569423. The cubic root of 421344471 is about 749.6854805662.

Adding to 421344471 its reverse (174443124), we get a palindrome (595787595).

It can be divided in two parts, 4213 and 44471, that added together give a palindrome (48684).

The spelling of 421344471 in words is "four hundred twenty-one million, three hundred forty-four thousand, four hundred seventy-one".