1394441917 has 8 divisors (see below), whose sum is σ = 1542635712. Its totient is φ = 1249819200.

The previous prime is 1394441911. The next prime is 1394441921. The reversal of 1394441917 is 7191444931.

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 1394441917 - 2¹¹ = 1394439869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394441911) 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, 891948 + ... + 893509.

It is an arithmetic number, because the mean of its divisors is an integer number (192829464).

Almost surely, 2^1394441917 is an apocalyptic number.

It is an amenable number.

1394441917 is a deficient number, since it is larger than the sum of its proper divisors (148193795).

1394441917 is a wasteful number, since it uses less digits than its factorization.

1394441917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785539.

The product of its digits is 108864, while the sum is 43.

The square root of 1394441917 is about 37342.2269957216. The cubic root of 1394441917 is about 1117.2065581558.

The spelling of 1394441917 in words is "one billion, three hundred ninety-four million, four hundred forty-one thousand, nine hundred seventeen".