3011994720 has 1008 divisors, whose sum is σ = 13564672128. Its totient is φ = 627056640.

The previous prime is 3011994707. The next prime is 3011994721. The reversal of 3011994720 is 274991103.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a super-2 number, since 2×3011994720² = 18144224386615756800, 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 not an unprimeable number, because it can be changed into a prime (3011994721) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 97161105 + ... + 97161135.

It is an arithmetic number, because the mean of its divisors is an integer number (13457016).

Almost surely, 2^3011994720 is an apocalyptic number.

3011994720 is a gapful number since it is divisible by the number (30) 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 3011994720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6782336064).

3011994720 is an abundant number, since it is smaller than the sum of its proper divisors (10552677408).

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

3011994720 is a wasteful number, since it uses less digits than its factorization.

3011994720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 3011994720 is about 54881.6428325538. The cubic root of 3011994720 is about 1444.1691675465.

The spelling of 3011994720 in words is "three billion, eleven million, nine hundred ninety-four thousand, seven hundred twenty".