4070440644 has 24 divisors (see below), whose sum is σ = 9512082048. Its totient is φ = 1354758240.

The previous prime is 4070440637. The next prime is 4070440657. The reversal of 4070440644 is 4460440704.

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, 248652 + ... + 264515.

It is an arithmetic number, because the mean of its divisors is an integer number (396336752).

Almost surely, 2^4070440644 is an apocalyptic number.

It is an amenable number.

4070440644 is an abundant number, since it is smaller than the sum of its proper divisors (5441641404).

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

4070440644 is a wasteful number, since it uses less digits than its factorization.

4070440644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513835 (or 513833 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 33.

The square root of 4070440644 is about 63800.0050470217. The cubic root of 4070440644 is about 1596.6650123447.

The spelling of 4070440644 in words is "four billion, seventy million, four hundred forty thousand, six hundred forty-four".