1394694425 has 6 divisors (see below), whose sum is σ = 1729421118. Its totient is φ = 1115755520.

The previous prime is 1394694407. The next prime is 1394694479. The reversal of 1394694425 is 5244964931.

It can be written as a sum of positive squares in 3 ways, for example, as 172213129 + 1222481296 = 13123^2 + 34964^2 .

It is not a de Polignac number, because 1394694425 - 2¹⁶ = 1394628889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1394694425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27893864 + ... + 27893913.

It is an arithmetic number, because the mean of its divisors is an integer number (288236853).

Almost surely, 2^1394694425 is an apocalyptic number.

It is an amenable number.

1394694425 is a deficient number, since it is larger than the sum of its proper divisors (334726693).

1394694425 is an equidigital number, since it uses as much as digits as its factorization.

1394694425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55787787 (or 55787782 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

The square root of 1394694425 is about 37345.6078408158. The cubic root of 1394694425 is about 1117.2739893300.

The spelling of 1394694425 in words is "one billion, three hundred ninety-four million, six hundred ninety-four thousand, four hundred twenty-five".