3000121440 has 48 divisors (see below), whose sum is σ = 9450384048. Its totient is φ = 800032256.

The previous prime is 3000121429. The next prime is 3000121477. The reversal of 3000121440 is 441210003.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3124647 + ... + 3125606.

It is an arithmetic number, because the mean of its divisors is an integer number (196883001).

Almost surely, 2^3000121440 is an apocalyptic number.

3000121440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3000121440 is an abundant number, since it is smaller than the sum of its proper divisors (6450262608).

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

3000121440 is a wasteful number, since it uses less digits than its factorization.

3000121440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6250271 (or 6250263 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3000121440 is about 54773.3643297543. The cubic root of 3000121440 is about 1442.2690307990.

Adding to 3000121440 its reverse (441210003), we get a palindrome (3441331443).

The spelling of 3000121440 in words is "three billion, one hundred twenty-one thousand, four hundred forty".