1387367120 has 40 divisors (see below), whose sum is σ = 3231462816. Its totient is φ = 553943168.

The previous prime is 1387367089. The next prime is 1387367129. The reversal of 1387367120 is 217637831.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387367129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29639 + ... + 60441.

Almost surely, 2^1387367120 is an apocalyptic number.

1387367120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1387367120 is an abundant number, since it is smaller than the sum of its proper divisors (1844095696).

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

1387367120 is a wasteful number, since it uses less digits than its factorization.

1387367120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31379 (or 31373 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 1387367120 is about 37247.3773573389. The cubic root of 1387367120 is about 1115.3139456600.

The spelling of 1387367120 in words is "one billion, three hundred eighty-seven million, three hundred sixty-seven thousand, one hundred twenty".