523400632 has 32 divisors (see below), whose sum is σ = 995425200. Its totient is φ = 257979904.

The previous prime is 523400617. The next prime is 523400639. The reversal of 523400632 is 236004325.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 523400597 and 523400606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523400639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176619 + ... + 179557.

Almost surely, 2^523400632 is an apocalyptic number.

It is an amenable number.

523400632 is a deficient number, since it is larger than the sum of its proper divisors (472024568).

523400632 is a wasteful number, since it uses less digits than its factorization.

523400632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255 (or 3251 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 523400632 is about 22877.9507823581. The cubic root of 523400632 is about 805.8942941294.

Adding to 523400632 its reverse (236004325), we get a palindrome (759404957).

The spelling of 523400632 in words is "five hundred twenty-three million, four hundred thousand, six hundred thirty-two".