298606997988 has 480 divisors, whose sum is σ = 895440268800. Its totient is φ = 86083430400.

The previous prime is 298606997977. The next prime is 298606998037. The reversal of 298606997988 is 889799606892.

It is a super-2 number, since 2×298606997988² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1977529713 + ... + 1977529863.

It is an arithmetic number, because the mean of its divisors is an integer number (1865500560).

Almost surely, 2^298606997988 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 298606997988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447720134400).

298606997988 is an abundant number, since it is smaller than the sum of its proper divisors (596833270812).

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

298606997988 is a wasteful number, since it uses less digits than its factorization.

298606997988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 1693052928, while the sum is 81.

The spelling of 298606997988 in words is "two hundred ninety-eight billion, six hundred six million, nine hundred ninety-seven thousand, nine hundred eighty-eight".