523267140 has 192 divisors, whose sum is σ = 1709164800. Its totient is φ = 118210560.

The previous prime is 523267111. The next prime is 523267189. The reversal of 523267140 is 41762325.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 523267098 and 523267107.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1671624 + ... + 1671936.

It is an arithmetic number, because the mean of its divisors is an integer number (8901900).

Almost surely, 2^523267140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523267140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854582400).

523267140 is an abundant number, since it is smaller than the sum of its proper divisors (1185897660).

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

523267140 is a wasteful number, since it uses less digits than its factorization.

523267140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 523267140 is about 22875.0331147301. The cubic root of 523267140 is about 805.8257745405.

The spelling of 523267140 in words is "five hundred twenty-three million, two hundred sixty-seven thousand, one hundred forty".