1398478700 has 18 divisors (see below), whose sum is σ = 3034698996. Its totient is φ = 559391440.

The previous prime is 1398478681. The next prime is 1398478733. The reversal of 1398478700 is 78748931.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6992294 + ... + 6992493.

Almost surely, 2^1398478700 is an apocalyptic number.

1398478700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1398478700 is an abundant number, since it is smaller than the sum of its proper divisors (1636220296).

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

1398478700 is a wasteful number, since it uses less digits than its factorization.

1398478700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984801 (or 13984794 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 1398478700 is about 37396.2391157186. The cubic root of 1398478700 is about 1118.2835901056.

The spelling of 1398478700 in words is "one billion, three hundred ninety-eight million, four hundred seventy-eight thousand, seven hundred".