1202866812 has 144 divisors (see below), whose sum is σ = 3554783232. Its totient is φ = 335871360.

The previous prime is 1202866757. The next prime is 1202866849. The reversal of 1202866812 is 2186682021.

1202866812 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1202866812² = 2893777134822086688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3224658 + ... + 3225030.

Almost surely, 2^1202866812 is an apocalyptic number.

1202866812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1202866812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777391616).

1202866812 is an abundant number, since it is smaller than the sum of its proper divisors (2351916420).

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

1202866812 is a wasteful number, since it uses less digits than its factorization.

1202866812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 1202866812 is about 34682.3703342202. The cubic root of 1202866812 is about 1063.5041301712.

The spelling of 1202866812 in words is "one billion, two hundred two million, eight hundred sixty-six thousand, eight hundred twelve".