1214669428 has 18 divisors (see below), whose sum is σ = 2472720306. Its totient is φ = 520572528.

The previous prime is 1214669383. The next prime is 1214669447. The reversal of 1214669428 is 8249664121.

It can be written as a sum of positive squares in only one way, i.e., 721029904 + 493639524 = 26852^2 + 22218^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3098451 + ... + 3098842.

Almost surely, 2^1214669428 is an apocalyptic number.

It is an amenable number.

1214669428 is an abundant number, since it is smaller than the sum of its proper divisors (1258050878).

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

1214669428 is a wasteful number, since it uses less digits than its factorization.

1214669428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197311 (or 6197302 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 1214669428 is about 34852.1079419882. The cubic root of 1214669428 is about 1066.9712081383.

The spelling of 1214669428 in words is "one billion, two hundred fourteen million, six hundred sixty-nine thousand, four hundred twenty-eight".