1028393012 has 24 divisors (see below), whose sum is σ = 1959736800. Its totient is φ = 470334816.

The previous prime is 1028393011. The next prime is 1028393017. The reversal of 1028393012 is 2103938201.

It is a super-3 number, since 3×1028393012³ (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028393011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231098 + ... + 235505.

It is an arithmetic number, because the mean of its divisors is an integer number (81655700).

Almost surely, 2^1028393012 is an apocalyptic number.

It is an amenable number.

1028393012 is a deficient number, since it is larger than the sum of its proper divisors (931343788).

1028393012 is a wasteful number, since it uses less digits than its factorization.

1028393012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466655 (or 466653 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1028393012 is about 32068.5673518478. The cubic root of 1028393012 is about 1009.3761503781.

The spelling of 1028393012 in words is "one billion, twenty-eight million, three hundred ninety-three thousand, twelve".