526423140 has 36 divisors (see below), whose sum is σ = 1596817404. Its totient is φ = 140379456.

The previous prime is 526423127. The next prime is 526423141. The reversal of 526423140 is 41324625.

526423140 is a `hidden beast` number, since 5 + 2 + 642 + 3 + 14 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 157552704 + 368870436 = 12552^2 + 19206^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (526423141) 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 11 ways as a sum of consecutive naturals, for example, 1462107 + ... + 1462466.

It is an arithmetic number, because the mean of its divisors is an integer number (44356039).

Almost surely, 2^526423140 is an apocalyptic number.

It is an amenable number.

526423140 is an abundant number, since it is smaller than the sum of its proper divisors (1070394264).

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

526423140 is a wasteful number, since it uses less digits than its factorization.

526423140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924588 (or 2924583 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 526423140 is about 22943.9129182448. The cubic root of 526423140 is about 807.4425970499.

Adding to 526423140 its reverse (41324625), we get a palindrome (567747765).

The spelling of 526423140 in words is "five hundred twenty-six million, four hundred twenty-three thousand, one hundred forty".