4440645156 has 24 divisors (see below), whose sum is σ = 10368144864. Its totient is φ = 1479266560.

The previous prime is 4440645149. The next prime is 4440645163. The reversal of 4440645156 is 6515460444.

It is an interprime number because it is at equal distance from previous prime (4440645149) and next prime (4440645163).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98925 + ... + 136628.

It is an arithmetic number, because the mean of its divisors is an integer number (432006036).

Almost surely, 2^4440645156 is an apocalyptic number.

It is an amenable number.

4440645156 is an abundant number, since it is smaller than the sum of its proper divisors (5927499708).

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

4440645156 is a wasteful number, since it uses less digits than its factorization.

4440645156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237131 (or 237129 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 39.

The square root of 4440645156 is about 66638.1659111353. The cubic root of 4440645156 is about 1643.6727567764.

The spelling of 4440645156 in words is "four billion, four hundred forty million, six hundred forty-five thousand, one hundred fifty-six".