511978932 has 36 divisors (see below), whose sum is σ = 1295199360. Its totient is φ = 170523792.

The previous prime is 511978889. The next prime is 511978937. The reversal of 511978932 is 239879115.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511978937) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46863 + ... + 56745.

It is an arithmetic number, because the mean of its divisors is an integer number (35977760).

Almost surely, 2^511978932 is an apocalyptic number.

It is an amenable number.

511978932 is an abundant number, since it is smaller than the sum of its proper divisors (783220428).

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

511978932 is a wasteful number, since it uses less digits than its factorization.

511978932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332 (or 11327 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 511978932 is about 22626.9514517533. The cubic root of 511978932 is about 799.9890269328.

The spelling of 511978932 in words is "five hundred eleven million, nine hundred seventy-eight thousand, nine hundred thirty-two".