421434513 has 12 divisors (see below), whose sum is σ = 608927748. Its totient is φ = 280869120.

The previous prime is 421434479. The next prime is 421434523. The reversal of 421434513 is 315434124.

It is a happy number.

421434513 is a `hidden beast` number, since 4 + 2 + 143 + 4 + 513 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22353984 + 399080529 = 4728^2 + 19977^2 .

It is not a de Polignac number, because 421434513 - 2¹² = 421430417 is a prime.

It is a super-3 number, since 3×421434513³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (421434523) 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 11 ways as a sum of consecutive naturals, for example, 38493 + ... + 48213.

It is an arithmetic number, because the mean of its divisors is an integer number (50743979).

Almost surely, 2^421434513 is an apocalyptic number.

It is an amenable number.

421434513 is a deficient number, since it is larger than the sum of its proper divisors (187493235).

421434513 is a wasteful number, since it uses less digits than its factorization.

421434513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14544 (or 14541 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 421434513 is about 20528.8702319441. The cubic root of 421434513 is about 749.7388797655.

Adding to 421434513 its reverse (315434124), we get a palindrome (736868637).

It can be divided in two parts, 42143 and 4513, that added together give a 6-th power (46656 = 6⁶).

The spelling of 421434513 in words is "four hundred twenty-one million, four hundred thirty-four thousand, five hundred thirteen".