1028917372 has 12 divisors (see below), whose sum is σ = 2057834800. Its totient is φ = 440964576.

The previous prime is 1028917369. The next prime is 1028917391. The reversal of 1028917372 is 2737198201.

It is a happy number.

1028917372 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18373497 + ... + 18373552.

Almost surely, 2^1028917372 is an apocalyptic number.

It is an amenable number.

1028917372 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1028917372 is a wasteful number, since it uses less digits than its factorization.

1028917372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36747060 (or 36747058 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 1028917372 is about 32076.7419168469. The cubic root of 1028917372 is about 1009.5476757713.

The spelling of 1028917372 in words is "one billion, twenty-eight million, nine hundred seventeen thousand, three hundred seventy-two".