512720432 has 20 divisors (see below), whose sum is σ = 1135309776. Its totient is φ = 219737280.

The previous prime is 512720423. The next prime is 512720441. The reversal of 512720432 is 234027215.

It is an interprime number because it is at equal distance from previous prime (512720423) and next prime (512720441).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2288819 + ... + 2289042.

Almost surely, 2^512720432 is an apocalyptic number.

It is an amenable number.

512720432 is an abundant number, since it is smaller than the sum of its proper divisors (622589344).

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

512720432 is a wasteful number, since it uses less digits than its factorization.

512720432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4577876 (or 4577870 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 512720432 is about 22643.3308503851. The cubic root of 512720432 is about 800.3750491452.

Adding to 512720432 its reverse (234027215), we get a palindrome (746747647).

The spelling of 512720432 in words is "five hundred twelve million, seven hundred twenty thousand, four hundred thirty-two".