298260973440 has 640 divisors, whose sum is σ = 1095732633600. Its totient is φ = 77286223872.

The previous prime is 298260973391. The next prime is 298260973441. The reversal of 298260973440 is 44379062892.

298260973440 is a `hidden beast` number, since 2 + 98 + 26 + 0 + 97 + 3 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298260973441) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 274388577 + ... + 274389663.

It is an arithmetic number, because the mean of its divisors is an integer number (1712082240).

Almost surely, 2^298260973440 is an apocalyptic number.

298260973440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 298260973440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547866316800).

298260973440 is an abundant number, since it is smaller than the sum of its proper divisors (797471660160).

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

298260973440 is a wasteful number, since it uses less digits than its factorization.

298260973440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1264 (or 1243 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 298260973440 in words is "two hundred ninety-eight billion, two hundred sixty million, nine hundred seventy-three thousand, four hundred forty".