298019493 has 20 divisors (see below), whose sum is σ = 445660908. Its totient is φ = 198469440.

The previous prime is 298019473. The next prime is 298019543. The reversal of 298019493 is 394910892.

It can be written as a sum of positive squares in 2 ways, for example, as 182736324 + 115283169 = 13518^2 + 10737^2 .

It is not a de Polignac number, because 298019493 - 2⁶ = 298019429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298019453) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129513 + ... + 131793.

Almost surely, 2^298019493 is an apocalyptic number.

It is an amenable number.

298019493 is a deficient number, since it is larger than the sum of its proper divisors (147641415).

298019493 is a wasteful number, since it uses less digits than its factorization.

298019493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 298019493 is about 17263.2410919850. The cubic root of 298019493 is about 667.9565668212.

The spelling of 298019493 in words is "two hundred ninety-eight million, nineteen thousand, four hundred ninety-three".