1316440919 has 16 divisors (see below), whose sum is σ = 1347840000. Its totient is φ = 1285542720.

The previous prime is 1316440889. The next prime is 1316440987. The reversal of 1316440919 is 9190446131.

It is a cyclic number.

It is not a de Polignac number, because 1316440919 - 2²⁰ = 1315392343 is a prime.

It is a super-2 number, since 2×1316440919² = 3466033386435129122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316440019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4232774 + ... + 4233084.

It is an arithmetic number, because the mean of its divisors is an integer number (84240000).

Almost surely, 2^1316440919 is an apocalyptic number.

1316440919 is a deficient number, since it is larger than the sum of its proper divisors (31399081).

1316440919 is a wasteful number, since it uses less digits than its factorization.

1316440919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1316440919 is about 36282.7909483270. The cubic root of 1316440919 is about 1095.9745205041.

The spelling of 1316440919 in words is "one billion, three hundred sixteen million, four hundred forty thousand, nine hundred nineteen".