421414450 has 12 divisors (see below), whose sum is σ = 783830970. Its totient is φ = 168565760.

The previous prime is 421414447. The next prime is 421414453. The reversal of 421414450 is 54414124.

It is an interprime number because it is at equal distance from previous prime (421414447) and next prime (421414453).

It can be written as a sum of positive squares in 3 ways, for example, as 354681889 + 66732561 = 18833^2 + 8169^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (421414453) 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 5 ways as a sum of consecutive naturals, for example, 4214095 + ... + 4214194.

Almost surely, 2^421414450 is an apocalyptic number.

421414450 is a deficient number, since it is larger than the sum of its proper divisors (362416520).

421414450 is a wasteful number, since it uses less digits than its factorization.

421414450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8428301 (or 8428296 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 421414450 is about 20528.3815728372. The cubic root of 421414450 is about 749.7269821085.

Adding to 421414450 its reverse (54414124), we get a palindrome (475828574).

The spelling of 421414450 in words is "four hundred twenty-one million, four hundred fourteen thousand, four hundred fifty".