3925212290 has 8 divisors (see below), whose sum is σ = 7065382140. Its totient is φ = 1570084912.

The previous prime is 3925212259. The next prime is 3925212293. The reversal of 3925212290 is 922125293.

It can be written as a sum of positive squares in 2 ways, for example, as 3917633281 + 7579009 = 62591^2 + 2753^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3925212290.

It is not an unprimeable number, because it can be changed into a prime (3925212293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196260605 + ... + 196260624.

Almost surely, 2^3925212290 is an apocalyptic number.

3925212290 is a deficient number, since it is larger than the sum of its proper divisors (3140169850).

3925212290 is a wasteful number, since it uses less digits than its factorization.

3925212290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392521236.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 3925212290 is about 62651.5146664468. The cubic root of 3925212290 is about 1577.4455719813.

The spelling of 3925212290 in words is "three billion, nine hundred twenty-five million, two hundred twelve thousand, two hundred ninety".