299880405 has 48 divisors (see below), whose sum is σ = 568788480. Its totient is φ = 144950400.

The previous prime is 299880403. The next prime is 299880419. The reversal of 299880405 is 504088992.

It is not a de Polignac number, because 299880405 - 2¹ = 299880403 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299880403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207676 + ... + 209114.

It is an arithmetic number, because the mean of its divisors is an integer number (11849760).

Almost surely, 2^299880405 is an apocalyptic number.

It is an amenable number.

299880405 is a deficient number, since it is larger than the sum of its proper divisors (268908075).

299880405 is a wasteful number, since it uses less digits than its factorization.

299880405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 1879 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 299880405 is about 17317.0553212721. The cubic root of 299880405 is about 669.3439817769.

The spelling of 299880405 in words is "two hundred ninety-nine million, eight hundred eighty thousand, four hundred five".