1386501140 has 48 divisors (see below), whose sum is σ = 2934973440. Its totient is φ = 550179840.

The previous prime is 1386501091. The next prime is 1386501167. The reversal of 1386501140 is 411056831.

It is a super-2 number, since 2×1386501140² = 3844770822442599200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2059844 + ... + 2060516.

It is an arithmetic number, because the mean of its divisors is an integer number (61145280).

Almost surely, 2^1386501140 is an apocalyptic number.

1386501140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1386501140 is an abundant number, since it is smaller than the sum of its proper divisors (1548472300).

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

1386501140 is a wasteful number, since it uses less digits than its factorization.

1386501140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1386501140 is about 37235.7508316940. The cubic root of 1386501140 is about 1115.0818416067.

Adding to 1386501140 its reverse (411056831), we get a palindrome (1797557971).

The spelling of 1386501140 in words is "one billion, three hundred eighty-six million, five hundred one thousand, one hundred forty".