1214782308 has 18 divisors (see below), whose sum is σ = 3070699814. Its totient is φ = 404927424.

The previous prime is 1214782267. The next prime is 1214782339. The reversal of 1214782308 is 8032874121.

It can be written as a sum of positive squares in only one way, i.e., 613453824 + 601328484 = 24768^2 + 24522^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 33743953 = 1214782308 / (1 + 2 + 1 + 4 + 7 + 8 + 2 + 3 + 0 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16871941 + ... + 16872012.

Almost surely, 2^1214782308 is an apocalyptic number.

1214782308 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1214782308 is an abundant number, since it is smaller than the sum of its proper divisors (1855917506).

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

1214782308 is a wasteful number, since it uses less digits than its factorization.

1214782308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33743963 (or 33743958 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 1214782308 is about 34853.7273186097. The cubic root of 1214782308 is about 1067.0042585515.

The spelling of 1214782308 in words is "one billion, two hundred fourteen million, seven hundred eighty-two thousand, three hundred eight".