1394481998 has 16 divisors (see below), whose sum is σ = 2574428640. Its totient is φ = 551663136.

The previous prime is 1394481983. The next prime is 1394482013. The reversal of 1394481998 is 8991844931.

It is an interprime number because it is at equal distance from previous prime (1394481983) and next prime (1394482013).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3830813 + ... + 3831176.

It is an arithmetic number, because the mean of its divisors is an integer number (160901790).

Almost surely, 2^1394481998 is an apocalyptic number.

1394481998 is a deficient number, since it is larger than the sum of its proper divisors (1179946642).

1394481998 is a wasteful number, since it uses less digits than its factorization.

1394481998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7662011.

The product of its digits is 2239488, while the sum is 56.

The square root of 1394481998 is about 37342.7636631249. The cubic root of 1394481998 is about 1117.2172621577.

The spelling of 1394481998 in words is "one billion, three hundred ninety-four million, four hundred eighty-one thousand, nine hundred ninety-eight".