523378838 has 16 divisors (see below), whose sum is σ = 806916624. Its totient is φ = 254417760.

The previous prime is 523378831. The next prime is 523378853. The reversal of 523378838 is 838873325.

It is a junction number, because it is equal to n+sod(n) for n = 523378792 and 523378801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523378831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147056 + ... + 150572.

It is an arithmetic number, because the mean of its divisors is an integer number (50432289).

Almost surely, 2^523378838 is an apocalyptic number.

523378838 is a deficient number, since it is larger than the sum of its proper divisors (283537786).

523378838 is a wasteful number, since it uses less digits than its factorization.

523378838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5567.

The product of its digits is 967680, while the sum is 47.

The square root of 523378838 is about 22877.4744672571. The cubic root of 523378838 is about 805.8831083678.

The spelling of 523378838 in words is "five hundred twenty-three million, three hundred seventy-eight thousand, eight hundred thirty-eight".