1244671478 has 16 divisors (see below), whose sum is σ = 1880642400. Its totient is φ = 617803200.

The previous prime is 1244671471. The next prime is 1244671489. The reversal of 1244671478 is 8741764421.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244671471) 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, 225698 + ... + 231146.

It is an arithmetic number, because the mean of its divisors is an integer number (117540150).

Almost surely, 2^1244671478 is an apocalyptic number.

1244671478 is a deficient number, since it is larger than the sum of its proper divisors (635970922).

1244671478 is a wasteful number, since it uses less digits than its factorization.

1244671478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6263.

The product of its digits is 301056, while the sum is 44.

The square root of 1244671478 is about 35279.9018989566. The cubic root of 1244671478 is about 1075.6845045227.

The spelling of 1244671478 in words is "one billion, two hundred forty-four million, six hundred seventy-one thousand, four hundred seventy-eight".