521314662 has 64 divisors (see below), whose sum is σ = 1193637888. Its totient is φ = 150336000.

The previous prime is 521314657. The next prime is 521314663. The reversal of 521314662 is 266413125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521314663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122718 + ... + 126894.

It is an arithmetic number, because the mean of its divisors is an integer number (18650592).

Almost surely, 2^521314662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 521314662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (596818944).

521314662 is an abundant number, since it is smaller than the sum of its proper divisors (672323226).

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

521314662 is a wasteful number, since it uses less digits than its factorization.

521314662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285.

The product of its digits is 8640, while the sum is 30.

The square root of 521314662 is about 22832.3161768577. The cubic root of 521314662 is about 804.8222603101.

Adding to 521314662 its reverse (266413125), we get a palindrome (787727787).

The spelling of 521314662 in words is "five hundred twenty-one million, three hundred fourteen thousand, six hundred sixty-two".