1394199616 has 14 divisors (see below), whose sum is σ = 2766614990. Its totient is φ = 697099776.

The previous prime is 1394199593. The next prime is 1394199637. The reversal of 1394199616 is 6169914931.

It can be written as a sum of positive squares in only one way, i.e., 1030153216 + 364046400 = 32096^2 + 19080^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1394199616.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10892121 + ... + 10892248.

Almost surely, 2^1394199616 is an apocalyptic number.

1394199616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1394199616 is a deficient number, since it is larger than the sum of its proper divisors (1372415374).

1394199616 is an equidigital number, since it uses as much as digits as its factorization.

1394199616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21784381 (or 21784371 counting only the distinct ones).

The product of its digits is 314928, while the sum is 49.

The square root of 1394199616 is about 37338.9825249698. The cubic root of 1394199616 is about 1117.1418450631.

The spelling of 1394199616 in words is "one billion, three hundred ninety-four million, one hundred ninety-nine thousand, six hundred sixteen".