1386982020 has 24 divisors (see below), whose sum is σ = 3883549824. Its totient is φ = 369861856.

The previous prime is 1386981997. The next prime is 1386982039. The reversal of 1386982020 is 202896831.

It is a happy number.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1386982020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11558124 + ... + 11558243.

It is an arithmetic number, because the mean of its divisors is an integer number (161814576).

Almost surely, 2^1386982020 is an apocalyptic number.

1386982020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386982020 is an abundant number, since it is smaller than the sum of its proper divisors (2496567804).

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

1386982020 is a wasteful number, since it uses less digits than its factorization.

1386982020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23116379 (or 23116377 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1386982020 is about 37242.2075070746. The cubic root of 1386982020 is about 1115.2107412664.

The spelling of 1386982020 in words is "one billion, three hundred eighty-six million, nine hundred eighty-two thousand, twenty".