1394625289 has 8 divisors (see below), whose sum is σ = 1472240000. Its totient is φ = 1317431952.

The previous prime is 1394625269. The next prime is 1394625293. The reversal of 1394625289 is 9825264931.

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 1394625289 - 2⁵ = 1394625257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1394625269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98529 + ... + 111790.

It is an arithmetic number, because the mean of its divisors is an integer number (184030000).

Almost surely, 2^1394625289 is an apocalyptic number.

1394625289 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1394625289 is a deficient number, since it is larger than the sum of its proper divisors (77614711).

1394625289 is a wasteful number, since it uses less digits than its factorization.

1394625289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210687.

The product of its digits is 933120, while the sum is 49.

The square root of 1394625289 is about 37344.6822051012. The cubic root of 1394625289 is about 1117.2555276680.

The spelling of 1394625289 in words is "one billion, three hundred ninety-four million, six hundred twenty-five thousand, two hundred eighty-nine".