3952262221 has 8 divisors (see below), whose sum is σ = 4187390904.
Its totient is φ = 3717427200.
The previous prime is 3952262213. The next prime is 3952262273. The reversal of 3952262221 is 1222622593.
It can be written as a sum of positive squares in 4 ways, for example, as 3122015625 + 830246596 = 55875^2 + 28814^2
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 3952262221 - 23 = 3952262213 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3952262291) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45390 + ... + 99823.
It is an arithmetic number, because the mean of its divisors is an integer number (523423863).
Almost surely, 23952262221 is an apocalyptic number.
It is an amenable number.
3952262221 is a deficient number, since it is larger than the sum of its proper divisors (235128683).
3952262221 is a wasteful number, since it uses less digits than its factorization.
3952262221 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146831.
The product of its digits is 25920, while the sum is 34.
The square root of 3952262221 is about 62867.0201377479.
The cubic root of 3952262221 is about 1581.0608456765.
The spelling of 3952262221 in words is "three billion, nine hundred fifty-two million, two hundred sixty-two thousand, two hundred twenty-one".