299140 has 12 divisors (see below), whose sum is σ = 628236. Its totient is φ = 119648.

The previous prime is 299137. The next prime is 299147. The reversal of 299140 is 41992.

It can be written as a sum of positive squares in 2 ways, for example, as 91204 + 207936 = 302^2 + 456^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (299147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7459 + ... + 7498.

It is an arithmetic number, because the mean of its divisors is an integer number (52353).

2²⁹⁹¹⁴⁰ is an apocalyptic number.

299140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299140 is an abundant number, since it is smaller than the sum of its proper divisors (329096).

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

299140 is a wasteful number, since it uses less digits than its factorization.

299140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14966 (or 14964 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 299140 is about 546.9369250654. The cubic root of 299140 is about 66.8792657482.

The spelling of 299140 in words is "two hundred ninety-nine thousand, one hundred forty".