1244945494 has 16 divisors (see below), whose sum is σ = 2053856448. Its totient is φ = 562364352.

The previous prime is 1244945483. The next prime is 1244945497. The reversal of 1244945494 is 4945494421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244945497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508167 + ... + 510610.

It is an arithmetic number, because the mean of its divisors is an integer number (128366028).

Almost surely, 2^1244945494 is an apocalyptic number.

1244945494 is a deficient number, since it is larger than the sum of its proper divisors (808910954).

1244945494 is a wasteful number, since it uses less digits than its factorization.

1244945494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018839.

The product of its digits is 829440, while the sum is 46.

The square root of 1244945494 is about 35283.7851427536. The cubic root of 1244945494 is about 1075.7634364986.

The spelling of 1244945494 in words is "one billion, two hundred forty-four million, nine hundred forty-five thousand, four hundred ninety-four".