512378 has 4 divisors (see below), whose sum is σ = 768570. Its totient is φ = 256188.

The previous prime is 512353. The next prime is 512389. The reversal of 512378 is 873215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 485809 + 26569 = 697^2 + 163^2 .

It is a d-powerful number, because it can be written as 5⁸ + 1 + 3 + 2² + 7⁶ + 8⁴ .

It is a Curzon number.

It is an unprimeable number.

512378 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128093 + ... + 128096.

2⁵¹²³⁷⁸ is an apocalyptic number.

512378 is a deficient number, since it is larger than the sum of its proper divisors (256192).

512378 is a wasteful number, since it uses less digits than its factorization.

512378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256191.

The product of its digits is 1680, while the sum is 26.

The square root of 512378 is about 715.8058395962. The cubic root of 512378 is about 80.0196826570.

It can be divided in two parts, 51 and 2378, that multiplied together give a triangular number (121278 = T₄₉₂).

The spelling of 512378 in words is "five hundred twelve thousand, three hundred seventy-eight".