1396641908 has 12 divisors (see below), whose sum is σ = 2444642592. Its totient is φ = 698172600.

The previous prime is 1396641907. The next prime is 1396641931. The reversal of 1396641908 is 8091466931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396641901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14360 + ... + 54767.

It is an arithmetic number, because the mean of its divisors is an integer number (203720216).

Almost surely, 2^1396641908 is an apocalyptic number.

It is an amenable number.

1396641908 is a deficient number, since it is larger than the sum of its proper divisors (1048000684).

1396641908 is a wasteful number, since it uses less digits than its factorization.

1396641908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74182 (or 74180 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1396641908 is about 37371.6725341535. The cubic root of 1396641908 is about 1117.7937830296.

The spelling of 1396641908 in words is "one billion, three hundred ninety-six million, six hundred forty-one thousand, nine hundred eight".