512044400 has 120 divisors (see below), whose sum is σ = 1467239424. Its totient is φ = 167904000.

The previous prime is 512044399. The next prime is 512044409. The reversal of 512044400 is 4440215.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512044409) 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, 60425 + ... + 68375.

Almost surely, 2^512044400 is an apocalyptic number.

512044400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 512044400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (733619712).

512044400 is an abundant number, since it is smaller than the sum of its proper divisors (955195024).

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

512044400 is a wasteful number, since it uses less digits than its factorization.

512044400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7999 (or 7988 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 512044400 is about 22628.3980873592. The cubic root of 512044400 is about 800.0231243316.

Adding to 512044400 its reverse (4440215), we get a palindrome (516484615).

The spelling of 512044400 in words is "five hundred twelve million, forty-four thousand, four hundred".