3726426066 has 64 divisors (see below), whose sum is σ = 8365593600. Its totient is φ = 1096666560.

The previous prime is 3726426049. The next prime is 3726426097. The reversal of 3726426066 is 6606246273.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1774285 + ... + 1776383.

It is an arithmetic number, because the mean of its divisors is an integer number (130712400).

Almost surely, 2^3726426066 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3726426066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4182796800).

3726426066 is an abundant number, since it is smaller than the sum of its proper divisors (4639167534).

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

3726426066 is a wasteful number, since it uses less digits than its factorization.

3726426066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879.

The product of its (nonzero) digits is 435456, while the sum is 42.

The square root of 3726426066 is about 61044.4597486127. The cubic root of 3726426066 is about 1550.3538652348.

The spelling of 3726426066 in words is "three billion, seven hundred twenty-six million, four hundred twenty-six thousand, sixty-six".