1387830480 has 40 divisors (see below), whose sum is σ = 4302275232. Its totient is φ = 370088064.

The previous prime is 1387830427. The next prime is 1387830481. The reversal of 1387830480 is 840387831.

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 (1387830481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2891074 + ... + 2891553.

Almost surely, 2^1387830480 is an apocalyptic number.

1387830480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1387830480 is an abundant number, since it is smaller than the sum of its proper divisors (2914444752).

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

1387830480 is a wasteful number, since it uses less digits than its factorization.

1387830480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5782643 (or 5782637 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 1387830480 is about 37253.5968733222. The cubic root of 1387830480 is about 1115.4380979337.

The spelling of 1387830480 in words is "one billion, three hundred eighty-seven million, eight hundred thirty thousand, four hundred eighty".