1387197600 has 288 divisors, whose sum is σ = 4921560000. Its totient is φ = 338042880.

The previous prime is 1387197593. The next prime is 1387197607. The reversal of 1387197600 is 67917831.

It is an interprime number because it is at equal distance from previous prime (1387197593) and next prime (1387197607).

It is not an unprimeable number, because it can be changed into a prime (1387197607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1321876 + ... + 1322924.

It is an arithmetic number, because the mean of its divisors is an integer number (17088750).

Almost surely, 2^1387197600 is an apocalyptic number.

1387197600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1387197600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2460780000).

1387197600 is an abundant number, since it is smaller than the sum of its proper divisors (3534362400).

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

1387197600 is a wasteful number, since it uses less digits than its factorization.

1387197600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 42.

The square root of 1387197600 is about 37245.1016913634. The cubic root of 1387197600 is about 1115.2685177127.

The spelling of 1387197600 in words is "one billion, three hundred eighty-seven million, one hundred ninety-seven thousand, six hundred".