4040208644 has 48 divisors (see below), whose sum is σ = 7556976000. Its totient is φ = 1883414016.

The previous prime is 4040208587. The next prime is 4040208671. The reversal of 4040208644 is 4468020404.

It is a self number, because there is not a number n which added to its sum of digits gives 4040208644.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3964367 + ... + 3965385.

It is an arithmetic number, because the mean of its divisors is an integer number (157437000).

Almost surely, 2^4040208644 is an apocalyptic number.

It is an amenable number.

4040208644 is a deficient number, since it is larger than the sum of its proper divisors (3516767356).

4040208644 is a wasteful number, since it uses less digits than its factorization.

4040208644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The square root of 4040208644 is about 63562.6355967089. The cubic root of 4040208644 is about 1592.7022655468.

The spelling of 4040208644 in words is "four billion, forty million, two hundred eight thousand, six hundred forty-four".