523788378 has 16 divisors (see below), whose sum is σ = 1047822240. Its totient is φ = 174555216.

The previous prime is 523788373. The next prime is 523788383. The reversal of 523788378 is 873887325.

It is an interprime number because it is at equal distance from previous prime (523788373) and next prime (523788383).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 523788378.

It is not an unprimeable number, because it can be changed into a prime (523788373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29208 + ... + 43596.

It is an arithmetic number, because the mean of its divisors is an integer number (65488890).

Almost surely, 2^523788378 is an apocalyptic number.

523788378 is an abundant number, since it is smaller than the sum of its proper divisors (524033862).

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

523788378 is a wasteful number, since it uses less digits than its factorization.

523788378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20461.

The product of its digits is 2257920, while the sum is 51.

The square root of 523788378 is about 22886.4234427313. The cubic root of 523788378 is about 806.0932527200.

The spelling of 523788378 in words is "five hundred twenty-three million, seven hundred eighty-eight thousand, three hundred seventy-eight".