4045555404 has 72 divisors (see below), whose sum is σ = 11266491600. Its totient is φ = 1213776000.

The previous prime is 4045555387. The next prime is 4045555427.

4045555404 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10579 + ... + 90570.

It is an arithmetic number, because the mean of its divisors is an integer number (156479050).

Almost surely, 2^4045555404 is an apocalyptic number.

4045555404 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4045555404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5633245800).

4045555404 is an abundant number, since it is smaller than the sum of its proper divisors (7220936196).

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

4045555404 is a wasteful number, since it uses less digits than its factorization.

4045555404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101271 (or 101266 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

The square root of 4045555404 is about 63604.6806768181. The cubic root of 4045555404 is about 1593.4045430536.

It can be divided in two parts, 40455 and 55404, that added together give a palindrome (95859).

The spelling of 4045555404 in words is "four billion, forty-five million, five hundred fifty-five thousand, four hundred four".