1023874491 has 4 divisors (see below), whose sum is σ = 1365165992. Its totient is φ = 682582992.

The previous prime is 1023874483. The next prime is 1023874499. The reversal of 1023874491 is 1944783201.

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

It is an interprime number because it is at equal distance from previous prime (1023874483) and next prime (1023874499).

It is not a de Polignac number, because 1023874491 - 2³ = 1023874483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023874499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170645746 + ... + 170645751.

It is an arithmetic number, because the mean of its divisors is an integer number (341291498).

Almost surely, 2^1023874491 is an apocalyptic number.

1023874491 is a deficient number, since it is larger than the sum of its proper divisors (341291501).

1023874491 is an equidigital number, since it uses as much as digits as its factorization.

1023874491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341291500.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1023874491 is about 31998.0388617803. The cubic root of 1023874491 is about 1007.8956581732.

The spelling of 1023874491 in words is "one billion, twenty-three million, eight hundred seventy-four thousand, four hundred ninety-one".