1928551416 has 128 divisors (see below), whose sum is σ = 5507481600. Its totient is φ = 557424000.

The previous prime is 1928551369. The next prime is 1928551453. The reversal of 1928551416 is 6141558291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 579405 + ... + 582723.

It is an arithmetic number, because the mean of its divisors is an integer number (43027200).

Almost surely, 2^1928551416 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 1928551416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2753740800).

1928551416 is an abundant number, since it is smaller than the sum of its proper divisors (3578930184).

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

1928551416 is a wasteful number, since it uses less digits than its factorization.

1928551416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441 (or 3437 counting only the distinct ones).

The product of its digits is 86400, while the sum is 42.

The square root of 1928551416 is about 43915.2754289439. The cubic root of 1928551416 is about 1244.7354945256.

The spelling of 1928551416 in words is "one billion, nine hundred twenty-eight million, five hundred fifty-one thousand, four hundred sixteen".