1214743660 has 48 divisors (see below), whose sum is σ = 2765472192. Its totient is φ = 445536000.

The previous prime is 1214743639. The next prime is 1214743661. The reversal of 1214743660 is 663474121.

It is not an unprimeable number, because it can be changed into a prime (1214743661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23790 + ... + 54730.

It is an arithmetic number, because the mean of its divisors is an integer number (57614004).

Almost surely, 2^1214743660 is an apocalyptic number.

1214743660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1214743660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1382736096).

1214743660 is an abundant number, since it is smaller than the sum of its proper divisors (1550728532).

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

1214743660 is a wasteful number, since it uses less digits than its factorization.

1214743660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31114 (or 31112 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 1214743660 is about 34853.1728828237. The cubic root of 1214743660 is about 1066.9929429389.

The spelling of 1214743660 in words is "one billion, two hundred fourteen million, seven hundred forty-three thousand, six hundred sixty".