3012129990 has 80 divisors (see below), whose sum is σ = 8116482528. Its totient is φ = 801529344.

The previous prime is 3012129949. The next prime is 3012129997. The reversal of 3012129990 is 999212103.

It is a happy number.

3012129990 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012129997) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 403734 + ... + 411126.

Almost surely, 2^3012129990 is an apocalyptic number.

3012129990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3012129990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4058241264).

3012129990 is an abundant number, since it is smaller than the sum of its proper divisors (5104352538).

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

3012129990 is a wasteful number, since it uses less digits than its factorization.

3012129990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915 (or 7906 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 3012129990 is about 54882.8751980069. The cubic root of 3012129990 is about 1444.1907866458.

The spelling of 3012129990 in words is "three billion, twelve million, one hundred twenty-nine thousand, nine hundred ninety".