1028408916 has 48 divisors (see below), whose sum is σ = 2431385600. Its totient is φ = 338294880.

The previous prime is 1028408869. The next prime is 1028408921. The reversal of 1028408916 is 6198048201.

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, 301581 + ... + 304971.

Almost surely, 2^1028408916 is an apocalyptic number.

It is an amenable number.

1028408916 is an abundant number, since it is smaller than the sum of its proper divisors (1402976684).

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

1028408916 is a wasteful number, since it uses less digits than its factorization.

1028408916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3724 (or 3722 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 1028408916 is about 32068.8153195593. The cubic root of 1028408916 is about 1009.3813536533.

The spelling of 1028408916 in words is "one billion, twenty-eight million, four hundred eight thousand, nine hundred sixteen".