1914404128 has 144 divisors (see below), whose sum is σ = 4971093120. Its totient is φ = 717341184.

The previous prime is 1914404111. The next prime is 1914404137. The reversal of 1914404128 is 8214044191.

It is a junction number, because it is equal to n+sod(n) for n = 1914404093 and 1914404102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384825 + ... + 389767.

It is an arithmetic number, because the mean of its divisors is an integer number (34521480).

Almost surely, 2^1914404128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1914404128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485546560).

1914404128 is an abundant number, since it is smaller than the sum of its proper divisors (3056688992).

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

1914404128 is a wasteful number, since it uses less digits than its factorization.

1914404128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999 (or 4984 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 1914404128 is about 43753.9041458017. The cubic root of 1914404128 is about 1241.6843499506.

The spelling of 1914404128 in words is "one billion, nine hundred fourteen million, four hundred four thousand, one hundred twenty-eight".