434140440405321 has 16 divisors (see below), whose sum is σ = 623382350867136. Its totient is φ = 267162831226176.

The previous prime is 434140440405319. The next prime is 434140440405401. The reversal of 434140440405321 is 123504044041434.

It is not a de Polignac number, because 434140440405321 - 2¹ = 434140440405319 is a prime.

It is a super-2 number, since 2×434140440405321² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 434140440405321.

It is not an unprimeable number, because it can be changed into a prime (434140440405521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10173766 + ... + 31173488.

It is an arithmetic number, because the mean of its divisors is an integer number (38961396929196).

Almost surely, 2^{434140440405321} is an apocalyptic number.

It is an amenable number.

434140440405321 is a deficient number, since it is larger than the sum of its proper divisors (189241910461815).

434140440405321 is a wasteful number, since it uses less digits than its factorization.

434140440405321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21529832.

The product of its (nonzero) digits is 368640, while the sum is 39.

Adding to 434140440405321 its reverse (123504044041434), we get a palindrome (557644484446755).

The spelling of 434140440405321 in words is "four hundred thirty-four trillion, one hundred forty billion, four hundred forty million, four hundred five thousand, three hundred twenty-one".