299138079240 has 1024 divisors, whose sum is σ = 1366364160000. Its totient is φ = 57366973440.

The previous prime is 299138079239. The next prime is 299138079241. The reversal of 299138079240 is 42970831992.

It is an interprime number because it is at equal distance from previous prime (299138079239) and next prime (299138079241).

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 (299138079241) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 52970097 + ... + 52975743.

It is an arithmetic number, because the mean of its divisors is an integer number (1334340000).

Almost surely, 2^299138079240 is an apocalyptic number.

299138079240 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 299138079240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683182080000).

299138079240 is an abundant number, since it is smaller than the sum of its proper divisors (1067226080760).

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

299138079240 is a wasteful number, since it uses less digits than its factorization.

299138079240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 5688 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 299138079240 in words is "two hundred ninety-nine billion, one hundred thirty-eight million, seventy-nine thousand, two hundred forty".