524225640 has 64 divisors (see below), whose sum is σ = 1574343360. Its totient is φ = 139645440.

The previous prime is 524225623. The next prime is 524225641. The reversal of 524225640 is 46522425.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 = 524225598 and 524225607.

It is not an unprimeable number, because it can be changed into a prime (524225641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156867 + ... + 160173.

It is an arithmetic number, because the mean of its divisors is an integer number (24599115).

Almost surely, 2^524225640 is an apocalyptic number.

It is an amenable number.

524225640 is an abundant number, since it is smaller than the sum of its proper divisors (1050117720).

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

524225640 is a wasteful number, since it uses less digits than its factorization.

524225640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4642 (or 4638 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 524225640 is about 22895.9743186439. The cubic root of 524225640 is about 806.3175009887.

The spelling of 524225640 in words is "five hundred twenty-four million, two hundred twenty-five thousand, six hundred forty".