1520846844 has 96 divisors (see below), whose sum is σ = 3928006656. Its totient is φ = 454164480.

The previous prime is 1520846813. The next prime is 1520846879. The reversal of 1520846844 is 4486480251.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1520846796 and 1520846805.

It is a congruent number.

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, 4308172 + ... + 4308524.

It is an arithmetic number, because the mean of its divisors is an integer number (40916736).

Almost surely, 2^1520846844 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 1520846844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1964003328).

1520846844 is an abundant number, since it is smaller than the sum of its proper divisors (2407159812).

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

1520846844 is a wasteful number, since it uses less digits than its factorization.

1520846844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755 (or 753 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 42.

The square root of 1520846844 is about 38998.0364121067. The cubic root of 1520846844 is about 1149.9929032958.

The spelling of 1520846844 in words is "one billion, five hundred twenty million, eight hundred forty-six thousand, eight hundred forty-four".