4044645120 has 72 divisors (see below), whose sum is σ = 12917597616. Its totient is φ = 1078571008.

The previous prime is 4044645107. The next prime is 4044645133. The reversal of 4044645120 is 215464404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4044645107) and next prime (4044645133).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522807 + ... + 530486.

It is an arithmetic number, because the mean of its divisors is an integer number (179411078).

Almost surely, 2^4044645120 is an apocalyptic number.

4044645120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4044645120 is an abundant number, since it is smaller than the sum of its proper divisors (8872952496).

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

4044645120 is a wasteful number, since it uses less digits than its factorization.

4044645120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053317 (or 1053303 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 4044645120 is about 63597.5244801242. The cubic root of 4044645120 is about 1593.2850242799.

The spelling of 4044645120 in words is "four billion, forty-four million, six hundred forty-five thousand, one hundred twenty".