1394398208 has 88 divisors (see below), whose sum is σ = 3373324992. Its totient is φ = 562397184.

The previous prime is 1394398189. The next prime is 1394398211. The reversal of 1394398208 is 8028934931.

It is a happy number.

It is a super-2 number, since 2×1394398208² = 3888692724947222528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 116135 + ... + 127577.

Almost surely, 2^1394398208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1394398208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1686662496).

1394398208 is an abundant number, since it is smaller than the sum of its proper divisors (1978926784).

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

1394398208 is a wasteful number, since it uses less digits than its factorization.

1394398208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11487 (or 11469 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 1394398208 is about 37341.6417421623. The cubic root of 1394398208 is about 1117.1948850291.

The spelling of 1394398208 in words is "one billion, three hundred ninety-four million, three hundred ninety-eight thousand, two hundred eight".