4045542408 has 160 divisors (see below), whose sum is σ = 12015125760. Its totient is φ = 1269509760.

The previous prime is 4045542407. The next prime is 4045542409. The reversal of 4045542408 is 8042455404.

4045542408 is a `hidden beast` number, since 404 + 5 + 5 + 4 + 240 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (4045542407) and next prime (4045542409).

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

It is not an unprimeable number, because it can be changed into a prime (4045542407) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 740535 + ... + 745977.

It is an arithmetic number, because the mean of its divisors is an integer number (75094536).

Almost surely, 2^4045542408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4045542408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6007562880).

4045542408 is an abundant number, since it is smaller than the sum of its proper divisors (7969583352).

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

4045542408 is a wasteful number, since it uses less digits than its factorization.

4045542408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529 (or 5516 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

The square root of 4045542408 is about 63604.5785144434. The cubic root of 4045542408 is about 1593.4028368266.

The spelling of 4045542408 in words is "four billion, forty-five million, five hundred forty-two thousand, four hundred eight".