1214406478 has 4 divisors (see below), whose sum is σ = 1821609720. Its totient is φ = 607203238.

The previous prime is 1214406439. The next prime is 1214406533. The reversal of 1214406478 is 8746044121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8746044121 = 24841 ⋅352081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303601618 + ... + 303601621.

It is an arithmetic number, because the mean of its divisors is an integer number (455402430).

Almost surely, 2^1214406478 is an apocalyptic number.

1214406478 is a deficient number, since it is larger than the sum of its proper divisors (607203242).

1214406478 is an equidigital number, since it uses as much as digits as its factorization.

1214406478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607203241.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 1214406478 is about 34848.3353691392. The cubic root of 1214406478 is about 1066.8942104191.

The spelling of 1214406478 in words is "one billion, two hundred fourteen million, four hundred six thousand, four hundred seventy-eight".