511284996 has 72 divisors (see below), whose sum is σ = 1381895424. Its totient is φ = 158826240.

The previous prime is 511284989. The next prime is 511284997. The reversal of 511284996 is 699482115.

511284996 is a `hidden beast` number, since 511 + 2 + 8 + 49 + 96 = 666.

It is a super-2 number, since 2×511284996² = 522824694269440032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511284997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58981 + ... + 67091.

It is an arithmetic number, because the mean of its divisors is an integer number (19192992).

Almost surely, 2^511284996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 511284996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690947712).

511284996 is an abundant number, since it is smaller than the sum of its proper divisors (870610428).

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

511284996 is a wasteful number, since it uses less digits than its factorization.

511284996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8241 (or 8236 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 511284996 is about 22611.6119726127. The cubic root of 511284996 is about 799.6274285985.

The spelling of 511284996 in words is "five hundred eleven million, two hundred eighty-four thousand, nine hundred ninety-six".