1214640219 has 32 divisors (see below), whose sum is σ = 1764209664. Its totient is φ = 738904320.

The previous prime is 1214640209. The next prime is 1214640283. The reversal of 1214640219 is 9120464121.

It is not a de Polignac number, because 1214640219 - 2¹⁷ = 1214509147 is a prime.

It is a super-2 number, since 2×1214640219² = 2950701723224735922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1214640209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2473564 + ... + 2474054.

It is an arithmetic number, because the mean of its divisors is an integer number (55131552).

Almost surely, 2^1214640219 is an apocalyptic number.

1214640219 is a deficient number, since it is larger than the sum of its proper divisors (549569445).

1214640219 is a wasteful number, since it uses less digits than its factorization.

1214640219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1214640219 is about 34851.6888973834. The cubic root of 1214640219 is about 1066.9626556298.

The spelling of 1214640219 in words is "one billion, two hundred fourteen million, six hundred forty thousand, two hundred nineteen".