1376144140 has 48 divisors (see below), whose sum is σ = 3356910144. Its totient is φ = 464083200.

The previous prime is 1376144123. The next prime is 1376144149. The reversal of 1376144140 is 414416731.

It is not an unprimeable number, because it can be changed into a prime (1376144149) by changing a digit.

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, 72031 + ... + 89110.

It is an arithmetic number, because the mean of its divisors is an integer number (69935628).

Almost surely, 2^1376144140 is an apocalyptic number.

1376144140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1376144140 is an abundant number, since it is smaller than the sum of its proper divisors (1980766004).

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

1376144140 is a wasteful number, since it uses less digits than its factorization.

1376144140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161218 (or 161216 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1376144140 is about 37096.4168080962. The cubic root of 1376144140 is about 1112.2983894221.

The spelling of 1376144140 in words is "one billion, three hundred seventy-six million, one hundred forty-four thousand, one hundred forty".