523352240 has 20 divisors (see below), whose sum is σ = 1216794144. Its totient is φ = 209340864.

The previous prime is 523352239. The next prime is 523352279. The reversal of 523352240 is 42253325.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×523352240² = 547795134226035200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3270872 + ... + 3271031.

Almost surely, 2^523352240 is an apocalyptic number.

It is an amenable number.

523352240 is an abundant number, since it is smaller than the sum of its proper divisors (693441904).

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

523352240 is a wasteful number, since it uses less digits than its factorization.

523352240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6541916 (or 6541910 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 523352240 is about 22876.8931457049. The cubic root of 523352240 is about 805.8694565345.

The spelling of 523352240 in words is "five hundred twenty-three million, three hundred fifty-two thousand, two hundred forty".