421414023 has 4 divisors (see below), whose sum is σ = 561885368. Its totient is φ = 280942680.

The previous prime is 421414013. The next prime is 421414057. The reversal of 421414023 is 320414124.

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

It is not a de Polignac number, because 421414023 - 2⁸ = 421413767 is a prime.

It is a super-3 number, since 3×421414023³ (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 (421414013) 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, 70235668 + ... + 70235673.

It is an arithmetic number, because the mean of its divisors is an integer number (140471342).

Almost surely, 2^421414023 is an apocalyptic number.

421414023 is a deficient number, since it is larger than the sum of its proper divisors (140471345).

421414023 is a wasteful number, since it uses less digits than its factorization.

421414023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140471344.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 421414023 is about 20528.3711725992. The cubic root of 421414023 is about 749.7267288871.

Adding to 421414023 its reverse (320414124), we get a palindrome (741828147).

It can be divided in two parts, 42141 and 4023, that added together give a palindrome (46164).

The spelling of 421414023 in words is "four hundred twenty-one million, four hundred fourteen thousand, twenty-three".