1314211440 has 40 divisors (see below), whose sum is σ = 4074056208. Its totient is φ = 350456320.

The previous prime is 1314211411. The next prime is 1314211441. The reversal of 1314211440 is 441124131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1314211441) 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, 2737701 + ... + 2738180.

Almost surely, 2^1314211440 is an apocalyptic number.

1314211440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1314211440 is an abundant number, since it is smaller than the sum of its proper divisors (2759844768).

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

1314211440 is a wasteful number, since it uses less digits than its factorization.

1314211440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475897 (or 5475891 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1314211440 is about 36252.0542866194. The cubic root of 1314211440 is about 1095.3554693376.

Adding to 1314211440 its reverse (441124131), we get a palindrome (1755335571).

The spelling of 1314211440 in words is "one billion, three hundred fourteen million, two hundred eleven thousand, four hundred forty".