1244780246 has 4 divisors (see below), whose sum is σ = 1867170372. Its totient is φ = 622390122.

The previous prime is 1244780237. The next prime is 1244780249. The reversal of 1244780246 is 6420874421.

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

It is a super-3 number, since 3×1244780246³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244780249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311195060 + ... + 311195063.

It is an arithmetic number, because the mean of its divisors is an integer number (466792593).

Almost surely, 2^1244780246 is an apocalyptic number.

1244780246 is a deficient number, since it is larger than the sum of its proper divisors (622390126).

1244780246 is an equidigital number, since it uses as much as digits as its factorization.

1244780246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622390125.

The product of its (nonzero) digits is 86016, while the sum is 38.

The square root of 1244780246 is about 35281.4433661663. The cubic root of 1244780246 is about 1075.7158371933.

The spelling of 1244780246 in words is "one billion, two hundred forty-four million, seven hundred eighty thousand, two hundred forty-six".