1028696412 has 12 divisors (see below), whose sum is σ = 2400291656. Its totient is φ = 342898800.

The previous prime is 1028696411. The next prime is 1028696429. The reversal of 1028696412 is 2146968201.

1028696412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028696411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42862339 + ... + 42862362.

Almost surely, 2^1028696412 is an apocalyptic number.

1028696412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1028696412 is an abundant number, since it is smaller than the sum of its proper divisors (1371595244).

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

1028696412 is a wasteful number, since it uses less digits than its factorization.

1028696412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85724708 (or 85724706 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1028696412 is about 32073.2974918389. The cubic root of 1028696412 is about 1009.4754038117.

The spelling of 1028696412 in words is "one billion, twenty-eight million, six hundred ninety-six thousand, four hundred twelve".