1314636640 has 48 divisors (see below), whose sum is σ = 3189784752. Its totient is φ = 511640064.

The previous prime is 1314636637. The next prime is 1314636641. The reversal of 1314636640 is 466364131.

It is a junction number, because it is equal to n+sod(n) for n = 1314636596 and 1314636605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314636641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105114 + ... + 116953.

It is an arithmetic number, because the mean of its divisors is an integer number (66453849).

Almost surely, 2^1314636640 is an apocalyptic number.

1314636640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1314636640 is an abundant number, since it is smaller than the sum of its proper divisors (1875148112).

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

1314636640 is a wasteful number, since it uses less digits than its factorization.

1314636640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222119 (or 222111 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 1314636640 is about 36257.9183075918. The cubic root of 1314636640 is about 1095.4735870446.

The spelling of 1314636640 in words is "one billion, three hundred fourteen million, six hundred thirty-six thousand, six hundred forty".