521179044 has 96 divisors (see below), whose sum is σ = 1324646400. Its totient is φ = 158941440.

The previous prime is 521179019. The next prime is 521179069. The reversal of 521179044 is 440971125.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (521179019) and next prime (521179069).

It is a junction number, because it is equal to n+sod(n) for n = 521178996 and 521179014.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1186977 + ... + 1187415.

It is an arithmetic number, because the mean of its divisors is an integer number (13798400).

Almost surely, 2^521179044 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 521179044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662323200).

521179044 is an abundant number, since it is smaller than the sum of its proper divisors (803467356).

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

521179044 is a wasteful number, since it uses less digits than its factorization.

521179044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 521179044 is about 22829.3461141575. The cubic root of 521179044 is about 804.7524637877.

It can be divided in two parts, 5211 and 79044, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 521179044 in words is "five hundred twenty-one million, one hundred seventy-nine thousand, forty-four".