4018786044 has 96 divisors (see below), whose sum is σ = 12042992640. Its totient is φ = 1013810688.

The previous prime is 4018785989. The next prime is 4018786049. The reversal of 4018786044 is 4406878104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 4018785987 and 4018786005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4018786049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54889 + ... + 105120.

It is an arithmetic number, because the mean of its divisors is an integer number (125447840).

Almost surely, 2^4018786044 is an apocalyptic number.

It is an amenable number.

4018786044 is an abundant number, since it is smaller than the sum of its proper divisors (8024206596).

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

4018786044 is a wasteful number, since it uses less digits than its factorization.

4018786044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160059 (or 160057 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 4018786044 is about 63393.8959522129. The cubic root of 4018786044 is about 1589.8822538493.

The spelling of 4018786044 in words is "four billion, eighteen million, seven hundred eighty-six thousand, forty-four".