511401628 has 12 divisors (see below), whose sum is σ = 895500760. Its totient is φ = 255544272.

The previous prime is 511401601. The next prime is 511401629. The reversal of 511401628 is 826104115.

It is a junction number, because it is equal to n+sod(n) for n = 511401596 and 511401605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511401629) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 31626 + ... + 44977.

Almost surely, 2^511401628 is an apocalyptic number.

It is an amenable number.

511401628 is a deficient number, since it is larger than the sum of its proper divisors (384099132).

511401628 is a wasteful number, since it uses less digits than its factorization.

511401628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78276 (or 78274 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 511401628 is about 22614.1908544171. The cubic root of 511401628 is about 799.6882264290.

The spelling of 511401628 in words is "five hundred eleven million, four hundred one thousand, six hundred twenty-eight".