849504780 has 144 divisors (see below), whose sum is σ = 2732577120. Its totient is φ = 219093120.

The previous prime is 849504713. The next prime is 849504827. The reversal of 849504780 is 87405948.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 518122 + ... + 519758.

It is an arithmetic number, because the mean of its divisors is an integer number (18976230).

Almost surely, 2^849504780 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 849504780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366288560).

849504780 is an abundant number, since it is smaller than the sum of its proper divisors (1883072340).

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

849504780 is a wasteful number, since it uses less digits than its factorization.

849504780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 849504780 is about 29146.2652839090. The cubic root of 849504780 is about 947.0842382415.

The spelling of 849504780 in words is "eight hundred forty-nine million, five hundred four thousand, seven hundred eighty".