1244020499 has 4 divisors (see below), whose sum is σ = 1253816064. Its totient is φ = 1234224936.

The previous prime is 1244020489. The next prime is 1244020501. The reversal of 1244020499 is 9940204421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1244020499 - 2⁸ = 1244020243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244020489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4897592 + ... + 4897845.

It is an arithmetic number, because the mean of its divisors is an integer number (313454016).

Almost surely, 2^1244020499 is an apocalyptic number.

1244020499 is a deficient number, since it is larger than the sum of its proper divisors (9795565).

1244020499 is an equidigital number, since it uses as much as digits as its factorization.

1244020499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9795564.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1244020499 is about 35270.6747738117. The cubic root of 1244020499 is about 1075.4969395974.

The spelling of 1244020499 in words is "one billion, two hundred forty-four million, twenty thousand, four hundred ninety-nine".