520672776 has 192 divisors, whose sum is σ = 1505226240. Its totient is φ = 149760000.

The previous prime is 520672771. The next prime is 520672783. The reversal of 520672776 is 677276025.

It is a super-2 number, since 2×520672776² = 542200279335092352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520672771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5155126 + ... + 5155226.

It is an arithmetic number, because the mean of its divisors is an integer number (7839720).

Almost surely, 2^520672776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520672776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752613120).

520672776 is an abundant number, since it is smaller than the sum of its proper divisors (984553464).

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

520672776 is a wasteful number, since it uses less digits than its factorization.

520672776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 520672776 is about 22818.2553233151. The cubic root of 520672776 is about 804.4918032606.

The spelling of 520672776 in words is "five hundred twenty million, six hundred seventy-two thousand, seven hundred seventy-six".