1491679298 has 4 divisors (see below), whose sum is σ = 2237518950. Its totient is φ = 745839648.

The previous prime is 1491679291. The next prime is 1491679307. The reversal of 1491679298 is 8929761941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1358438449 + 133240849 = 36857^2 + 11543^2 .

It is not an unprimeable number, because it can be changed into a prime (1491679291) 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 as a sum of consecutive naturals, namely, 372919823 + ... + 372919826.

Almost surely, 2^1491679298 is an apocalyptic number.

1491679298 is a deficient number, since it is larger than the sum of its proper divisors (745839652).

1491679298 is an equidigital number, since it uses as much as digits as its factorization.

1491679298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745839651.

The product of its digits is 1959552, while the sum is 56.

The square root of 1491679298 is about 38622.2642785220. The cubic root of 1491679298 is about 1142.5936886878.

The spelling of 1491679298 in words is "one billion, four hundred ninety-one million, six hundred seventy-nine thousand, two hundred ninety-eight".