298624139 has 16 divisors (see below), whose sum is σ = 330359040. Its totient is φ = 267680160.

The previous prime is 298624133. The next prime is 298624181. The reversal of 298624139 is 931426892.

It is not a de Polignac number, because 298624139 - 2²⁰ = 297575563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 298624139.

It is not an unprimeable number, because it can be changed into a prime (298624133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314864 + ... + 315810.

It is an arithmetic number, because the mean of its divisors is an integer number (20647440).

Almost surely, 2^298624139 is an apocalyptic number.

298624139 is a deficient number, since it is larger than the sum of its proper divisors (31734901).

298624139 is a wasteful number, since it uses less digits than its factorization.

298624139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its digits is 186624, while the sum is 44.

The square root of 298624139 is about 17280.7447466826. The cubic root of 298624139 is about 668.4079963906.

The spelling of 298624139 in words is "two hundred ninety-eight million, six hundred twenty-four thousand, one hundred thirty-nine".