511340404 has 6 divisors (see below), whose sum is σ = 894845714. Its totient is φ = 255670200.

The previous prime is 511340387. The next prime is 511340413. The reversal of 511340404 is 404043115.

It can be written as a sum of positive squares in only one way, i.e., 510850404 + 490000 = 22602^2 + 700^2 .

It is a super-2 number, since 2×511340404² = 522938017525766432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63917547 + ... + 63917554.

Almost surely, 2^511340404 is an apocalyptic number.

It is an amenable number.

511340404 is a deficient number, since it is larger than the sum of its proper divisors (383505310).

511340404 is a wasteful number, since it uses less digits than its factorization.

511340404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127835105 (or 127835103 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 511340404 is about 22612.8371506098. The cubic root of 511340404 is about 799.6563127867.

Adding to 511340404 its reverse (404043115), we get a palindrome (915383519).

The spelling of 511340404 in words is "five hundred eleven million, three hundred forty thousand, four hundred four".