523355420 has 24 divisors (see below), whose sum is σ = 1256053344. Its totient is φ = 179436096.

The previous prime is 523355383. The next prime is 523355453. The reversal of 523355420 is 24553325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868987 + ... + 1869266.

It is an arithmetic number, because the mean of its divisors is an integer number (52335556).

Almost surely, 2^523355420 is an apocalyptic number.

It is an amenable number.

523355420 is an abundant number, since it is smaller than the sum of its proper divisors (732697924).

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

523355420 is a wasteful number, since it uses less digits than its factorization.

523355420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3738269 (or 3738267 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 523355420 is about 22876.9626480440. The cubic root of 523355420 is about 805.8710887428.

The spelling of 523355420 in words is "five hundred twenty-three million, three hundred fifty-five thousand, four hundred twenty".