1020389212 has 24 divisors (see below), whose sum is σ = 1816758720. Its totient is φ = 501332160.

The previous prime is 1020389203. The next prime is 1020389233. The reversal of 1020389212 is 2129830201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415773 + ... + 418219.

It is an arithmetic number, because the mean of its divisors is an integer number (75698280).

Almost surely, 2^1020389212 is an apocalyptic number.

It is an amenable number.

1020389212 is a deficient number, since it is larger than the sum of its proper divisors (796369508).

1020389212 is a wasteful number, since it uses less digits than its factorization.

1020389212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4221 (or 4219 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1020389212 is about 31943.5316143973. The cubic root of 1020389212 is about 1006.7507291077.

The spelling of 1020389212 in words is "one billion, twenty million, three hundred eighty-nine thousand, two hundred twelve".