523041140 has 24 divisors (see below), whose sum is σ = 1099044072. Its totient is φ = 209091200.

The previous prime is 523041089. The next prime is 523041143. The reversal of 523041140 is 41140325.

It can be written as a sum of positive squares in 4 ways, for example, as 23697424 + 499343716 = 4868^2 + 22346^2 .

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 (523041143) 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, 31142 + ... + 44898.

It is an arithmetic number, because the mean of its divisors is an integer number (45793503).

Almost surely, 2^523041140 is an apocalyptic number.

It is an amenable number.

523041140 is an abundant number, since it is smaller than the sum of its proper divisors (576002932).

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

523041140 is a wasteful number, since it uses less digits than its factorization.

523041140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15667 (or 15665 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 523041140 is about 22870.0926976696. The cubic root of 523041140 is about 805.7097453104.

Adding to 523041140 its reverse (41140325), we get a palindrome (564181465).

The spelling of 523041140 in words is "five hundred twenty-three million, forty-one thousand, one hundred forty".