299279111040 has 2688 divisors, whose sum is σ = 1441246413600. Its totient is φ = 58692501504.

The previous prime is 299279111023. The next prime is 299279111071. The reversal of 299279111040 is 40111972992.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (2688).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 335 ways as a sum of consecutive naturals, for example, 5646775654 + ... + 5646775706.

Almost surely, 2^299279111040 is an apocalyptic number.

299279111040 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 299279111040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (720623206800).

299279111040 is an abundant number, since it is smaller than the sum of its proper divisors (1141967302560).

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

299279111040 is a wasteful number, since it uses less digits than its factorization.

299279111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 299279111040 in words is "two hundred ninety-nine billion, two hundred seventy-nine million, one hundred eleven thousand, forty".