1394678674 has 8 divisors (see below), whose sum is σ = 2215077948. Its totient is φ = 656319360.

The previous prime is 1394678671. The next prime is 1394678699. The reversal of 1394678674 is 4768764931.

It can be written as a sum of positive squares in 2 ways, for example, as 1357554025 + 37124649 = 36845^2 + 6093^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1394678671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20509947 + ... + 20510014.

Almost surely, 2^1394678674 is an apocalyptic number.

1394678674 is a deficient number, since it is larger than the sum of its proper divisors (820399274).

1394678674 is a wasteful number, since it uses less digits than its factorization.

1394678674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41019980.

The product of its digits is 6096384, while the sum is 55.

The square root of 1394678674 is about 37345.3969586615. The cubic root of 1394678674 is about 1117.2697833313.

The spelling of 1394678674 in words is "one billion, three hundred ninety-four million, six hundred seventy-eight thousand, six hundred seventy-four".