520150638 has 16 divisors (see below), whose sum is σ = 1188915840. Its totient is φ = 148614456.

The previous prime is 520150637. The next prime is 520150651. The reversal of 520150638 is 836051025.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520150637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6192228 + ... + 6192311.

It is an arithmetic number, because the mean of its divisors is an integer number (74307240).

Almost surely, 2^520150638 is an apocalyptic number.

520150638 is an abundant number, since it is smaller than the sum of its proper divisors (668765202).

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

520150638 is a wasteful number, since it uses less digits than its factorization.

520150638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384551.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 520150638 is about 22806.8112194581. The cubic root of 520150638 is about 804.2227947448. Note that the first 3 decimals are identical.

The spelling of 520150638 in words is "five hundred twenty million, one hundred fifty thousand, six hundred thirty-eight".