298777812 has 96 divisors (see below), whose sum is σ = 763015680. Its totient is φ = 90668160.

The previous prime is 298777799. The next prime is 298777813. The reversal of 298777812 is 218777892.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298777813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902487 + ... + 902817.

It is an arithmetic number, because the mean of its divisors is an integer number (7948080).

Almost surely, 2^298777812 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 298777812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381507840).

298777812 is an abundant number, since it is smaller than the sum of its proper divisors (464237868).

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

298777812 is a wasteful number, since it uses less digits than its factorization.

298777812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 499 counting only the distinct ones).

The product of its digits is 790272, while the sum is 51.

The square root of 298777812 is about 17285.1905398812. The cubic root of 298777812 is about 668.5226317401.

It can be divided in two parts, 2987778 and 12, that added together give a triangular number (2987790 = T₂₄₄₄).

The spelling of 298777812 in words is "two hundred ninety-eight million, seven hundred seventy-seven thousand, eight hundred twelve".