1244992874 has 4 divisors (see below), whose sum is σ = 1867489314. Its totient is φ = 622496436.

The previous prime is 1244992789. The next prime is 1244992883. The reversal of 1244992874 is 4782994421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4782994421 = 17 ⋅281352613.

It can be written as a sum of positive squares in only one way, i.e., 829036849 + 415956025 = 28793^2 + 20395^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311248217 + ... + 311248220.

Almost surely, 2^1244992874 is an apocalyptic number.

1244992874 is a deficient number, since it is larger than the sum of its proper divisors (622496440).

1244992874 is an equidigital number, since it uses as much as digits as its factorization.

1244992874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622496439.

The product of its digits is 1161216, while the sum is 50.

The square root of 1244992874 is about 35284.4565495914. The cubic root of 1244992874 is about 1075.7770834214. Note that the first 3 decimals are identical.

The spelling of 1244992874 in words is "one billion, two hundred forty-four million, nine hundred ninety-two thousand, eight hundred seventy-four".