1387890200 has 48 divisors (see below), whose sum is σ = 3416667480. Its totient is φ = 522498560.

The previous prime is 1387890199. The next prime is 1387890233. The reversal of 1387890200 is 20987831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200702 + ... + 207501.

Almost surely, 2^1387890200 is an apocalyptic number.

1387890200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1387890200 is an abundant number, since it is smaller than the sum of its proper divisors (2028777280).

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

1387890200 is a wasteful number, since it uses less digits than its factorization.

1387890200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408236 (or 408227 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 1387890200 is about 37254.3983980415. The cubic root of 1387890200 is about 1115.4540972479.

The spelling of 1387890200 in words is "one billion, three hundred eighty-seven million, eight hundred ninety thousand, two hundred".