1394978504 has 16 divisors (see below), whose sum is σ = 2630199600. Its totient is φ = 693591952.

The previous prime is 1394978489. The next prime is 1394978509. The reversal of 1394978504 is 4058794931.

It is not an unprimeable number, because it can be changed into a prime (1394978509) 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, 485642 + ... + 488505.

It is an arithmetic number, because the mean of its divisors is an integer number (164387475).

Almost surely, 2^1394978504 is an apocalyptic number.

It is an amenable number.

1394978504 is a deficient number, since it is larger than the sum of its proper divisors (1235221096).

1394978504 is a wasteful number, since it uses less digits than its factorization.

1394978504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974332 (or 974328 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 1394978504 is about 37349.4110261460. The cubic root of 1394978504 is about 1117.3498416756.

The spelling of 1394978504 in words is "one billion, three hundred ninety-four million, nine hundred seventy-eight thousand, five hundred four".