511493028 has 24 divisors (see below), whose sum is σ = 1205790432. Its totient is φ = 168739584.

The previous prime is 511493023. The next prime is 511493029. The reversal of 511493028 is 820394115.

It is a self number, because there is not a number n which added to its sum of digits gives 511493028.

It is not an unprimeable number, because it can be changed into a prime (511493023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218550 + ... + 220877.

It is an arithmetic number, because the mean of its divisors is an integer number (50241268).

Almost surely, 2^511493028 is an apocalyptic number.

It is an amenable number.

511493028 is an abundant number, since it is smaller than the sum of its proper divisors (694297404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511493028 is a wasteful number, since it uses less digits than its factorization.

511493028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439531 (or 439529 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 511493028 is about 22616.2116191019. The cubic root of 511493028 is about 799.7358648837.

The spelling of 511493028 in words is "five hundred eleven million, four hundred ninety-three thousand, twenty-eight".