1394490400 has 36 divisors (see below), whose sum is σ = 3404301642. Its totient is φ = 557795840.

The previous prime is 1394490379. The next prime is 1394490407. The reversal of 1394490400 is 40944931.

It can be written as a sum of positive squares in 3 ways, for example, as 682881424 + 711608976 = 26132^2 + 26676^2 .

It is not an unprimeable number, because it can be changed into a prime (1394490407) by changing a digit.

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, 870757 + ... + 872356.

Almost surely, 2^1394490400 is an apocalyptic number.

1394490400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1394490400 is an abundant number, since it is smaller than the sum of its proper divisors (2009811242).

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

1394490400 is a wasteful number, since it uses less digits than its factorization.

1394490400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743133 (or 1743120 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1394490400 is about 37342.8761613243. The cubic root of 1394490400 is about 1117.2195059636.

The spelling of 1394490400 in words is "one billion, three hundred ninety-four million, four hundred ninety thousand, four hundred".