1385751140 has 12 divisors (see below), whose sum is σ = 2910077436. Its totient is φ = 554300448.

The previous prime is 1385751097. The next prime is 1385751179. The reversal of 1385751140 is 411575831.

It can be written as a sum of positive squares in 2 ways, for example, as 1069551616 + 316199524 = 32704^2 + 17782^2 .

It is a super-2 number, since 2×1385751140² = 3840612444022599200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1385751140.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34643759 + ... + 34643798.

It is an arithmetic number, because the mean of its divisors is an integer number (242506453).

Almost surely, 2^1385751140 is an apocalyptic number.

1385751140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1385751140 is an abundant number, since it is smaller than the sum of its proper divisors (1524326296).

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

1385751140 is a wasteful number, since it uses less digits than its factorization.

1385751140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69287566 (or 69287564 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The square root of 1385751140 is about 37225.6785028829. The cubic root of 1385751140 is about 1114.8807449523.

The spelling of 1385751140 in words is "one billion, three hundred eighty-five million, seven hundred fifty-one thousand, one hundred forty".