1273401044 has 6 divisors (see below), whose sum is σ = 2228451834. Its totient is φ = 636700520.

The previous prime is 1273401037. The next prime is 1273401067. The reversal of 1273401044 is 4401043721.

It can be written as a sum of positive squares in only one way, i.e., 979690000 + 293711044 = 31300^2 + 17138^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159175127 + ... + 159175134.

It is an arithmetic number, because the mean of its divisors is an integer number (371408639).

Almost surely, 2^1273401044 is an apocalyptic number.

It is an amenable number.

1273401044 is a deficient number, since it is larger than the sum of its proper divisors (955050790).

1273401044 is a wasteful number, since it uses less digits than its factorization.

1273401044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318350265 (or 318350263 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1273401044 is about 35684.7452562016. The cubic root of 1273401044 is about 1083.8979640526.

Adding to 1273401044 its reverse (4401043721), we get a palindrome (5674444765).

The spelling of 1273401044 in words is "one billion, two hundred seventy-three million, four hundred one thousand, forty-four".