1394468289 has 6 divisors (see below), whose sum is σ = 2014231986. Its totient is φ = 929645520.

The previous prime is 1394468279. The next prime is 1394468303. The reversal of 1394468289 is 9828644931.

1394468289 is a `hidden beast` number, since 13 + 94 + 468 + 2 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1347477264 + 46991025 = 36708^2 + 6855^2 .

It is not a de Polignac number, because 1394468289 - 2¹³ = 1394460097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1394468279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77470452 + ... + 77470469.

It is an arithmetic number, because the mean of its divisors is an integer number (335705331).

Almost surely, 2^1394468289 is an apocalyptic number.

It is an amenable number.

1394468289 is a deficient number, since it is larger than the sum of its proper divisors (619763697).

1394468289 is a wasteful number, since it uses less digits than its factorization.

1394468289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154940927 (or 154940924 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The square root of 1394468289 is about 37342.5801063612. The cubic root of 1394468289 is about 1117.2136010655.

The spelling of 1394468289 in words is "one billion, three hundred ninety-four million, four hundred sixty-eight thousand, two hundred eighty-nine".