1394685994 has 32 divisors (see below), whose sum is σ = 2426719680. Its totient is φ = 595631232.

The previous prime is 1394685989. The next prime is 1394685997. The reversal of 1394685994 is 4995864931.

It is not an unprimeable number, because it can be changed into a prime (1394685997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11587 + ... + 54070.

It is an arithmetic number, because the mean of its divisors is an integer number (75834990).

Almost surely, 2^1394685994 is an apocalyptic number.

1394685994 is a deficient number, since it is larger than the sum of its proper divisors (1032033686).

1394685994 is a wasteful number, since it uses less digits than its factorization.

1394685994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65734.

The product of its digits is 8398080, while the sum is 58.

The square root of 1394685994 is about 37345.4949625788. The cubic root of 1394685994 is about 1117.2717379991.

The spelling of 1394685994 in words is "one billion, three hundred ninety-four million, six hundred eighty-five thousand, nine hundred ninety-four".