1928616552 has 48 divisors (see below), whose sum is σ = 5286284640. Its totient is φ = 635124768.

The previous prime is 1928616533. The next prime is 1928616553. The reversal of 1928616552 is 2556168291.

1928616552 = 479² + 480² + ... + 1806².

1928616552 is a `hidden beast` number, since 1 + 9 + 2 + 86 + 16 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1928616498 and 1928616507.

It is not an unprimeable number, because it can be changed into a prime (1928616553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 155388 + ... + 167339.

It is an arithmetic number, because the mean of its divisors is an integer number (110130930).

Almost surely, 2^1928616552 is an apocalyptic number.

1928616552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1928616552 is an abundant number, since it is smaller than the sum of its proper divisors (3357668088).

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

1928616552 is a wasteful number, since it uses less digits than its factorization.

1928616552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322822 (or 322815 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 1928616552 is about 43916.0170325133. The cubic root of 1928616552 is about 1244.7495078377.

The spelling of 1928616552 in words is "one billion, nine hundred twenty-eight million, six hundred sixteen thousand, five hundred fifty-two".