1028212878 has 32 divisors (see below), whose sum is σ = 2563856640. Its totient is φ = 267068160.

The previous prime is 1028212859. The next prime is 1028212891. The reversal of 1028212878 is 8782128201.

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, 1112323 + ... + 1113246.

It is an arithmetic number, because the mean of its divisors is an integer number (80120520).

Almost surely, 2^1028212878 is an apocalyptic number.

1028212878 is an abundant number, since it is smaller than the sum of its proper divisors (1535643762).

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

1028212878 is a wasteful number, since it uses less digits than its factorization.

1028212878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225592.

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 1028212878 is about 32065.7586531178. The cubic root of 1028212878 is about 1009.3172126055.

The spelling of 1028212878 in words is "one billion, twenty-eight million, two hundred twelve thousand, eight hundred seventy-eight".