1423214878 has 16 divisors (see below), whose sum is σ = 2190605760. Its totient is φ = 693072000.

The previous prime is 1423214869. The next prime is 1423214909. The reversal of 1423214878 is 8784123241.

It is a self number, because there is not a number n which added to its sum of digits gives 1423214878.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34843 + ... + 63721.

It is an arithmetic number, because the mean of its divisors is an integer number (136912860).

Almost surely, 2^1423214878 is an apocalyptic number.

1423214878 is a deficient number, since it is larger than the sum of its proper divisors (767390882).

1423214878 is a wasteful number, since it uses less digits than its factorization.

1423214878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29523.

The product of its digits is 86016, while the sum is 40.

The square root of 1423214878 is about 37725.5202482351. The cubic root of 1423214878 is about 1124.8384631932.

The spelling of 1423214878 in words is "one billion, four hundred twenty-three million, two hundred fourteen thousand, eight hundred seventy-eight".