1028654872 has 16 divisors (see below), whose sum is σ = 2204260560. Its totient is φ = 440852064.

The previous prime is 1028654857. The next prime is 1028654881. The reversal of 1028654872 is 2784568201.

It is a happy 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, 9184363 + ... + 9184474.

It is an arithmetic number, because the mean of its divisors is an integer number (137766285).

Almost surely, 2^1028654872 is an apocalyptic number.

It is an amenable number.

1028654872 is an abundant number, since it is smaller than the sum of its proper divisors (1175605688).

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

1028654872 is a wasteful number, since it uses less digits than its factorization.

1028654872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18368850 (or 18368846 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 1028654872 is about 32072.6499061116. The cubic root of 1028654872 is about 1009.4618156846.

The spelling of 1028654872 in words is "one billion, twenty-eight million, six hundred fifty-four thousand, eight hundred seventy-two".