1386750980 has 48 divisors (see below), whose sum is σ = 2983792896. Its totient is φ = 541136640.

The previous prime is 1386750947. The next prime is 1386750991. The reversal of 1386750980 is 890576831.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308912 + ... + 313368.

It is an arithmetic number, because the mean of its divisors is an integer number (62162352).

Almost surely, 2^1386750980 is an apocalyptic number.

1386750980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386750980 is an abundant number, since it is smaller than the sum of its proper divisors (1597041916).

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

1386750980 is a wasteful number, since it uses less digits than its factorization.

1386750980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844 (or 4842 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1386750980 is about 37239.1055209440. The cubic root of 1386750980 is about 1115.1488148214.

The spelling of 1386750980 in words is "one billion, three hundred eighty-six million, seven hundred fifty thousand, nine hundred eighty".