4374021816 has 32 divisors (see below), whose sum is σ = 12150061200. Its totient is φ = 1458007200.

The previous prime is 4374021797. The next prime is 4374021829. The reversal of 4374021816 is 6181204734.

4374021816 is a `hidden beast` number, since 437 + 4 + 0 + 218 + 1 + 6 = 666.

It is a super-3 number, since 3×4374021816³ (a number of 30 digits) contains 333 as substring.

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

It is a congruent number.

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, 10124835 + ... + 10125266.

Almost surely, 2^4374021816 is an apocalyptic number.

It is an amenable number.

4374021816 is an abundant number, since it is smaller than the sum of its proper divisors (7776039384).

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

4374021816 is a wasteful number, since it uses less digits than its factorization.

4374021816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20250116 (or 20250106 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 4374021816 is about 66136.3879872495. The cubic root of 4374021816 is about 1635.4112524952.

It can be divided in two parts, 43740 and 21816, that added together give a palindrome (65556).

The spelling of 4374021816 in words is "four billion, three hundred seventy-four million, twenty-one thousand, eight hundred sixteen".