298923117090 has 256 divisors, whose sum is σ = 833828567040. Its totient is φ = 67922472960.

The previous prime is 298923117023. The next prime is 298923117091. The reversal of 298923117090 is 90711329892.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (298923117091) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 307850305 + ... + 307851275.

It is an arithmetic number, because the mean of its divisors is an integer number (3257142840).

Almost surely, 2^298923117090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 298923117090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416914283520).

298923117090 is an abundant number, since it is smaller than the sum of its proper divisors (534905449950).

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

298923117090 is a wasteful number, since it uses less digits than its factorization.

298923117090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857.

The product of its (nonzero) digits is 489888, while the sum is 51.

The spelling of 298923117090 in words is "two hundred ninety-eight billion, nine hundred twenty-three million, one hundred seventeen thousand, ninety".