512801378 has 8 divisors (see below), whose sum is σ = 769304172. Its totient is φ = 256366656.

The previous prime is 512801371. The next prime is 512801383. The reversal of 512801378 is 873108215.

It can be written as a sum of positive squares in 2 ways, for example, as 425060689 + 87740689 = 20617^2 + 9367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (512801371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11126 + ... + 33902.

Almost surely, 2^512801378 is an apocalyptic number.

512801378 is a deficient number, since it is larger than the sum of its proper divisors (256502794).

512801378 is a wasteful number, since it uses less digits than its factorization.

512801378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34036.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 512801378 is about 22645.1181935533. The cubic root of 512801378 is about 800.4171668020.

It can be divided in two parts, 512 and 801378, that multiplied together give a square (410305536 = 20256²).

The spelling of 512801378 in words is "five hundred twelve million, eight hundred one thousand, three hundred seventy-eight".