299561420 has 48 divisors (see below), whose sum is σ = 668461248. Its totient is φ = 112373760.

The previous prime is 299561419. The next prime is 299561441. The reversal of 299561420 is 24165992.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104324 + ... + 107156.

It is an arithmetic number, because the mean of its divisors is an integer number (13926276).

Almost surely, 2^299561420 is an apocalyptic number.

299561420 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 299561420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334230624).

299561420 is an abundant number, since it is smaller than the sum of its proper divisors (368899828).

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

299561420 is a wasteful number, since it uses less digits than its factorization.

299561420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170 (or 3168 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 299561420 is about 17307.8427309703. The cubic root of 299561420 is about 669.1065688665.

The spelling of 299561420 in words is "two hundred ninety-nine million, five hundred sixty-one thousand, four hundred twenty".