798978330 has 80 divisors (see below), whose sum is σ = 2170725480. Its totient is φ = 210843648.

The previous prime is 798978319. The next prime is 798978331. The reversal of 798978330 is 33879897.

It can be written as a sum of positive squares in 4 ways, for example, as 758947401 + 40030929 = 27549^2 + 6327^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (798978331) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 73486 + ... + 83654.

Almost surely, 2^798978330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 798978330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1085362740).

798978330 is an abundant number, since it is smaller than the sum of its proper divisors (1371747150).

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

798978330 is a wasteful number, since it uses less digits than its factorization.

798978330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10285 (or 10276 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 798978330 is about 28266.2047328608. The cubic root of 798978330 is about 927.9224173709.

The spelling of 798978330 in words is "seven hundred ninety-eight million, nine hundred seventy-eight thousand, three hundred thirty".