520150640 has 40 divisors (see below), whose sum is σ = 1218203280. Its totient is φ = 206537216.

The previous prime is 520150637. The next prime is 520150651. The reversal of 520150640 is 46051025.

It is a tau number, because it is divible by the number of its divisors (40).

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, 12770 + ... + 34689.

It is an arithmetic number, because the mean of its divisors is an integer number (30455082).

Almost surely, 2^520150640 is an apocalyptic number.

It is an amenable number.

520150640 is an abundant number, since it is smaller than the sum of its proper divisors (698052640).

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

520150640 is a wasteful number, since it uses less digits than its factorization.

520150640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47609 (or 47603 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 520150640 is about 22806.8112633047. The cubic root of 520150640 is about 804.2227957756. Note that the first 3 decimals are identical.

The spelling of 520150640 in words is "five hundred twenty million, one hundred fifty thousand, six hundred forty".