1394814643 has 8 divisors (see below), whose sum is σ = 1490141120. Its totient is φ = 1301679720.

The previous prime is 1394814613. The next prime is 1394814649. The reversal of 1394814643 is 3464184931.

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

It is a cyclic number.

It is not a de Polignac number, because 1394814643 - 2⁵ = 1394814611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1394814643.

It is not an unprimeable number, because it can be changed into a prime (1394814649) 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, 546573 + ... + 549118.

It is an arithmetic number, because the mean of its divisors is an integer number (186267640).

Almost surely, 2^1394814643 is an apocalyptic number.

1394814643 is a deficient number, since it is larger than the sum of its proper divisors (95326477).

1394814643 is a wasteful number, since it uses less digits than its factorization.

1394814643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095777.

The product of its digits is 248832, while the sum is 43.

The square root of 1394814643 is about 37347.2173394485. The cubic root of 1394814643 is about 1117.3060901694.

The spelling of 1394814643 in words is "one billion, three hundred ninety-four million, eight hundred fourteen thousand, six hundred forty-three".