1926944128 has 128 divisors (see below), whose sum is σ = 4249728000. Its totient is φ = 866764800.

The previous prime is 1926944119. The next prime is 1926944153. The reversal of 1926944128 is 8214496291.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1926944128² = 7426227344867360768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4598703 + ... + 4599121.

It is an arithmetic number, because the mean of its divisors is an integer number (33201000).

Almost surely, 2^1926944128 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 1926944128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2124864000).

1926944128 is an abundant number, since it is smaller than the sum of its proper divisors (2322783872).

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

1926944128 is a wasteful number, since it uses less digits than its factorization.

1926944128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 532 counting only the distinct ones).

The product of its digits is 248832, while the sum is 46.

The square root of 1926944128 is about 43896.9717406566. The cubic root of 1926944128 is about 1244.3896037435.

The spelling of 1926944128 in words is "one billion, nine hundred twenty-six million, nine hundred forty-four thousand, one hundred twenty-eight".