1314221340 has 48 divisors (see below), whose sum is σ = 3699118080. Its totient is φ = 348621120.

The previous prime is 1314221269. The next prime is 1314221353. The reversal of 1314221340 is 431224131.

It is a super-2 number, since 2×1314221340² = 3454355461022791200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45880 + ... + 68799.

It is an arithmetic number, because the mean of its divisors is an integer number (77064960).

Almost surely, 2^1314221340 is an apocalyptic number.

1314221340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1314221340 is an abundant number, since it is smaller than the sum of its proper divisors (2384896740).

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

1314221340 is a wasteful number, since it uses less digits than its factorization.

1314221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114882 (or 114880 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1314221340 is about 36252.1908303484. The cubic root of 1314221340 is about 1095.3582197808.

Adding to 1314221340 its reverse (431224131), we get a palindrome (1745445471).

The spelling of 1314221340 in words is "one billion, three hundred fourteen million, two hundred twenty-one thousand, three hundred forty".