3925642242 has 8 divisors (see below), whose sum is σ = 7851284496. Its totient is φ = 1308547412.

The previous prime is 3925642219. The next prime is 3925642249. The reversal of 3925642242 is 2422465293.

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

3925642242 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 3925642242.

It is not an unprimeable number, because it can be changed into a prime (3925642249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327136848 + ... + 327136859.

It is an arithmetic number, because the mean of its divisors is an integer number (981410562).

Almost surely, 2^3925642242 is an apocalyptic number.

3925642242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3925642242 is a wasteful number, since it uses less digits than its factorization.

3925642242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654273712.

The product of its digits is 207360, while the sum is 39.

The square root of 3925642242 is about 62654.9458702184. The cubic root of 3925642242 is about 1577.5031655640.

The spelling of 3925642242 in words is "three billion, nine hundred twenty-five million, six hundred forty-two thousand, two hundred forty-two".