1394441946 has 16 divisors (see below), whose sum is σ = 3098760000. Its totient is φ = 464813964.

The previous prime is 1394441933. The next prime is 1394441947. The reversal of 1394441946 is 6491444931.

1394441946 is a `hidden beast` number, since 13 + 9 + 444 + 194 + 6 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1394441947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12911446 + ... + 12911553.

It is an arithmetic number, because the mean of its divisors is an integer number (193672500).

Almost surely, 2^1394441946 is an apocalyptic number.

1394441946 is an abundant number, since it is smaller than the sum of its proper divisors (1704318054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1394441946 is a wasteful number, since it uses less digits than its factorization.

1394441946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25823010 (or 25823004 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 1394441946 is about 37342.2273840220. The cubic root of 1394441946 is about 1117.2065659006.

The spelling of 1394441946 in words is "one billion, three hundred ninety-four million, four hundred forty-one thousand, nine hundred forty-six".