1294749078 has 16 divisors (see below), whose sum is σ = 2959426560. Its totient is φ = 369928296.

The previous prime is 1294749077. The next prime is 1294749089. The reversal of 1294749078 is 8709474921.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 1294749078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1294749073) 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, 15413638 + ... + 15413721.

It is an arithmetic number, because the mean of its divisors is an integer number (184964160).

Almost surely, 2^1294749078 is an apocalyptic number.

1294749078 is an abundant number, since it is smaller than the sum of its proper divisors (1664677482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1294749078 is a wasteful number, since it uses less digits than its factorization.

1294749078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30827371.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 1294749078 is about 35982.6218889063. The cubic root of 1294749078 is about 1089.9214594252.

The spelling of 1294749078 in words is "one billion, two hundred ninety-four million, seven hundred forty-nine thousand, seventy-eight".