514405431 has 64 divisors (see below), whose sum is σ = 840153600. Its totient is φ = 309754368.

The previous prime is 514405427. The next prime is 514405447. The reversal of 514405431 is 134504415.

It is a happy number.

It is not a de Polignac number, because 514405431 - 2² = 514405427 is a prime.

It is a super-2 number, since 2×514405431² = 529225894884591522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 514405395 and 514405404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514405481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1322185 + ... + 1322573.

It is an arithmetic number, because the mean of its divisors is an integer number (13127400).

Almost surely, 2^514405431 is an apocalyptic number.

514405431 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

514405431 is a deficient number, since it is larger than the sum of its proper divisors (325748169).

514405431 is a wasteful number, since it uses less digits than its factorization.

514405431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 514405431 is about 22680.5077324120. The cubic root of 514405431 is about 801.2508717762.

Adding to 514405431 its reverse (134504415), we get a palindrome (648909846).

The spelling of 514405431 in words is "five hundred fourteen million, four hundred five thousand, four hundred thirty-one".