3821094225 has 81 divisors (see below), whose sum is σ = 7434415443. Its totient is φ = 1875219840.

The previous prime is 3821094223. The next prime is 3821094331. The reversal of 3821094225 is 5224901283.

It is a happy number.

The square root of 3821094225 is 61815.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 3500970561 + 320123664 = 59169^2 + 17892^2 .

It is not a de Polignac number, because 3821094225 - 2¹ = 3821094223 is a prime.

It is a super-2 number, since 2×3821094225² = 29201522152656701250, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3821094225.

It is not an unprimeable number, because it can be changed into a prime (3821094223) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 12053767 + ... + 12054083.

Almost surely, 2^3821094225 is an apocalyptic number.

3821094225 is the 61815-th square number.

3821094225 is the 30908-th centered octagonal number.

It is an amenable number.

3821094225 is a deficient number, since it is larger than the sum of its proper divisors (3613321218).

3821094225 is a wasteful number, since it uses less digits than its factorization.

3821094225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The cubic root of 3821094225 is about 1563.3729104334.

Multiplying 3821094225 by its sum of digits (36), we get a square (137559392100 = 370890²).

The spelling of 3821094225 in words is "three billion, eight hundred twenty-one million, ninety-four thousand, two hundred twenty-five".